[41] As the moraine moved forward and began colliding with Gilbert Point, the boundary conditions for upstream ice changed appreciably. THE HUBBARD GLACIER CONTINUES ITS ALARMING RETREAT – MORE EVIDENCE OF VERY-SCARY GLOBAL WARMING! Billy, Warren, et al, The southernmost named glacier among them is the Lilliput Glacier in Tulare County, east of the Central Valley of California. The solution is simple: CHANGE THE RECORDS. Variations in Alaska tidewater glacier frontal ablation, 1985–2013. Located in Disenchantment Bay between Seward and Skagway, Hubbard Glacier is the largest glacier in North America. The advancement or retreat of a glacier’s terminus depends on the snowfall that melts down or flows from its catchment basin. 3 km3 of water flushed through the gap in a period of about 30 hours. Norwegian glaciers. This Glacier is actually advancing (growing, the only one that still is by the way) so don't be too mad about the people being excited for the ice falling The difference between MLLW and mean sea level is about 2.2 m, estimated from the tide record at nearby Yakutat. http://rsgisias.crrel.usace.army.mil/hubbard/glaciers.html Given the current rates of sediment accumulation it may take another ten years for sediments to fill the gap to 1999 levels (Figure 9). [56] The discharge records for the 1986 and 2002 outbursts differ significantly and reflect differences in lake height ±26 m versus 15 m) and dam types (ice versus moraine). Based on the current rate of advance at the gap, Stearns estimated that closure could occur by 2043. Glaciers growing on Glacier Peak, WA THE WHOLE THING IS COMING DOWN! (/sarc). Vertical growth of the moraine dam outpaced lake level rise with the height eventually reaching 15 m asl. Although the photos lacked stereo coverage, we were nevertheless able to measure terminus boundaries, moraine growth, and horizontal glacier flow in the vicinity of Gilbert Point. Instead, flood waters from intense rains rapidly eroded the dam and submarine sediments, widening and deepening the channel. Journal of Geomagnetism and Aeronomy, Nonlinear http://www.rogerfromnewzealand.wordpress.com. David C. Finnegan/CRREL 10 May 09 – This from climatologist Cliff Harris of the Coeur d’Alene Press. This glacier is also advancing – Ref: Weather, not Climate. Terminus position in 1961 shown by black boundary. Thus we propose that future closures will depend in part on continued sedimentation into the channel at Gilbert Point. And, naturally, they will find that a collapse is imminent, but they need to drill more holes so they can observe the collapse to better understand global warming. Another nail in the CAGW coffin. Photo dates and times are known to within a minute and therefore uncertainties in Δt are negligible. Both of these things are bad in the dyspeptic world of alarmism. just because there are enviro-wackos, that has nothing to do with the hundreds of professional Climate Scientists doing research and publishing. The reef west of Gilbert Point probably helped to trap these sediments. March, and D.S. Just read the climate-gate emails for evidence that the peer review process is now horribly flawed in a number of formerly “decent journals”. These speeds were quite high, ranging from 12 to 4 m d−1 in a N – S gradient Given that ice thickness within 1 km of the terminus was likely 200 to 400 m [Trabant et al., 1991], most (≥ 90 %) of the measured surface ice velocity must be attributable to basal sliding. And we’re still awaiting Anthony’s paper on data treatment. The new flow barrier caused ice divergence to both sides of Gilbert Point and a zone of compression behind the ice front with strain rates of about −3.5 × 10−3 d−1. I think they could. The image above, acquired by the Operational Land Imager (OLI) on Landsat 8, shows Hubbard Glacier on July 22, 2014.The image shows a close-up of the glacier’s terminus on that day. Flow was also becoming more bifurcated to either side of Gilbert Point. Haenke Island – The climate station at Haenke Island is damaged beyond repair and is scheduled for replacement. Glaciers are slow-moving rivers of ice that usually grow in winter and shrink in summer. Fireball in the sky over Alaska. The total age of the glacier is approximately 400 years. A simple model of the outburst indicates that moraine erosion rates were almost an order of magnitude slower than those reported by Walder and Costa [1996] for other earthen dams. Gilbert Point By spring 2002, a subaerial push moraine developed as a result of shallow water, mobile sediments, and seasonal advance. Recent Posts. Hubbard Glacier, Alaska: Growing and Advancing in Spite of Global Climate Change and the 1986 and 2002 Russell Lake Outburst Floods U.S. Department of the Interior U.S. Geological Survey USGS Fact Sheet 001—03 January 2003 Awaiting the new discovery of the properties of ice being made more flowy by warming. Sediments are slowly filling in the channel at a rate of about 4 m yr−1, and their steady accumulation may eventually trigger the next closure. If this were retreating, I could google “Hubbard glacier,” and the first 50 or so article hits would be duplicate commentaries on the press release about global warming/climate change. We therefore computed the combined uncertainty separately for each velocity using error propagation. Moraine dam is shown in Figures 7a and 7b. Most are getting smaller, fast. I was there in 2008 as well http://coalitionoftheswilling.net/?p=4484. Lake height reached 15 m asl before intense rains caused lake water to overtop the moraine dam on 14 August 2002. November 13, 2020 . Oh-oh, she forgot to mention the magic words “climate change”, No funding for you! Perhaps the British spelled it with a ‘k’ 250 years ago? In 2002, Stearns was attending a glaciology conference in nearby Yakutat, Alaska, a town that depends on Russell Fjord’s marine life. Advancing Glacier Coming Close to Blocking Fiord Near Yakutat, Alaska. Of course. “This is all to be expected as when glaciers melt, they speed up and so this is why its advancing and getting thicker…”. . If you’re wondering what the largest glacier in Alaska is, you got it. Furthermore, a realtime camera system has been installed at Gilbert Point to collect and transmit visible images every 3 hours and thermal images every 8 hours. The 1986 event was the subject of several articles [Seitz et al., 1986; Mayo, 1988, 1989; Trabant et al., 1991; Krimmel and Trabant, 1992] and received widespread attention in the press. [11] The water level record for “Russell Lake” was obtained from the U.S. Geological Survey (USGS) who operated a standard water level type tide gauge located in the “lake”. These surveys serendipitously overlapped with the 2002 damming of Russell Fjord. However, during the outburst, the sill remained intact, deflecting flow toward the glacier front, creating a deep channel there. I noticed that too – all about cruises etc. A handful of Alaska glaciers are advancing and a few of those are getting bigger, but those are the exceptions. Source: CDApress.com. It seems that the mini glaciers in Glacier National Park get a lot of press because they are retreating, but Hubbard doesn’t get any press, even though it’s the largest tidewater glacier in North America. Physics, Solar If you condemn peer review in general, you reject the modern day findings of all science, not just AGW. This tidewater glacier may be a bit of sleeping giant. Well, it’s proof of warming, of course : in this polar area it doesn’t meld ice, but it makes ice more fluid and advance quicker (instead of sticking to mountain flanks), hence the grow. The first bathymetry of the Gilbert Point area after the 1986 outburst was made 2 years later in July 1988 [Trabant et al., 1991]. This happened roughly 13 hours after the start of the outburst. Walsh. However, to our knowledge, Hubbard Glacier is the first historic instance of an advancing tidewater glacier damming a major waterway. [58] Support for this work was provided in part by U.S. National Science Foundation grant OPP‐0221307, by NASA grant NAG5‐13760, and by U.S. National Park Service grant G‐2276. Our Yukutat, Alaska correspondent Frank "Skip" Ryman has updated his information for our readers concerning the advancing Hubbard Glacier that’s threatening the town where he’s the city manager. Hubbard Glacier has dammed Russell Fjord twice in historic times, once in 1986 and again in 2002. NASA image of the Day - The Advance of Hubbard Glacier Related to Geologic Time, Mineralogy Three questions arise from these observations: (1) What conditions prevent the glacier at Gilbert Point from advancing as rapidly as elsewhere? Hubbard is one of the few glaciers that is actually growing. Now about 66 km (41 mi) in length, it is the longest glacier in the southern hemisphere outside of Antarctica. Hubbard Glacier, located in southeast Alaska, has an intriguing history; it retreated during the Little Ice Age when neighboring glaciers advanced and is currently advancing while neighboring glaciers recede [Barclay et al., 2001; Trabant et al., 2003; McNabb and Hock, 2014]. And don’t forget shooting the dogs. Morainal bank progradation and sediment accumulation in Disenchantment Bay, Alaska: Response to advancing Hubbard Glacier. Hubbard Glacier is the largest of eight calving glaciers in Alaska that are currently increasing in total mass and advancing. It must be melting more at the top and running downhill, plus the extra humidity in the super-warm air causes more snow on the glacier. I know French in Canada was 16th century French, although over the last two generations, modern French is being taught. The annual average terminus position at Gilbert Point has remained constant since 2002, although there are seasonal variations of 100–200 m. The deep channel, strong tidal currents, and seasonally warm ocean water appear to have prevented the advance of this segment of the terminus despite the glacier's continued advance elsewhere along its terminus. Off the coast of Yakutat—200 miles NW of Juneau—Hubbard is certainly gigantic: it's more than six miles wide where it meets the ocean. The lateral extent of the 7 July 2002 ice and moraine dam (short‐dashed lines) is also shown. Geophysics, Geomagnetism In French cantons in Switzerland they still have archaic usage (septante, huitante, nonante (IIRC) for soixante-dix, quatre-vingt, quatre vingt-dix [70, 80, 90] Come to think of it Shakespeare is 16thC and it is, to some English speakers, almost unintelligible. [33] We solved the coupled equations (2)-equations (2)–(4) for B(t) and w(t) using the Matlab ODE solver. https://en.wikipedia.org/wiki/Br%C3%BCggen_Glacier. Hubbard Glacier, Alaska: Growing and Advancing in Spite of Global Climate Change and the 1986 and 2002 Russell Lake Outburst Floods. Advance of Hubbard Glacier and 1986 outburst of Russell Fiord, Alaska, U.S.A. Taku Glacier on the move again: Active deformation of proglacial sediments, 20th century thinning of Mendenhall Glacier, Alaska, and its relationship to climate, lake calving, and glacier run‐off, Submarine melting at the terminus of a temperate tidewater glacier, LeConte Glacier, Alaska, Rapid erosion of soft sediments by tidewater glacier advance: Taku Glacier, Alaska, USA, Preliminary hydrography and historic terminal changes of Columbia Glacier, Alaska, Taku and LeConte Glaciers, Alaska: Calving speed control of late Holocene asynchronous advances and retreats, Oceanographic conditions during 1973 in Russell Fiord, Alaska. Chinese Lunar Landing Mission Challenges US Space Supremacy, LIVE STREAM: Al Gore on using satellite data to measure climate change, Ottawa's latest climate plan bets on expensive and unproven carbon capture technologies, Robot probes the Red Sea’s carbon storage system, Data Sonification: A New Cosmic Triad of Sound, Roger Pielke Jr.’s 2020 Hurricane Season Recap, Ottawa’s latest climate plan bets on expensive and unproven carbon capture technologies, Polar bear habitat update for late November, Weekly Climate and Energy News Roundup #433, Intergovernmental Panel on Climate Change, National Oceanic and Atmospheric Administration. Alaska tidewater glacier terminus positions, 1948–2012. [54] Complicating this prediction are ice flow instabilities. The ‘formal’ excuse is that melting surface water reaches the base of the glacier through moulins and lubricates the flow causing the glacier to advance and thin. Because of inherent dangers associated with a calving face, we remained at least 100 m or farther from terminus ice cliffs NOS surveys were even more conservative, keeping at least 0.25 km from calving faces. The ellipses depict the estimated errors. Thus monitoring of both bathymetry and glacier dynamics is warranted. Goodbye to a raffish glacier scientist. Or dig a canal to bypass Gilbert Point? Hubbard advanced to within 70 m of Gilbert Point in July 2011. From Wikipedia: Our post 2002 outburst bathymetry showed the existence of a shallow erosion‐resistant sill west of Gilbert Point (Figure 8). So you have the cojones to say that peer-reviewed science and all the worlds institutions of Science, which conclude AGW, are institutions of Religion, and YOU, an avowed rejecter of their findings, represent SCIENCE? These soundings were sparse but suggest scoured depths exceeded 35 m. In subsequent years, the glacier likely modified submarine topography by remobilizing and excavating glaciomarine sediments, redepositing them in proglacial areas [e.g., Hunter et al., 1996; Motyka et al., 2006]. Estimate of submarine melt rate in meters per day per degree Celsius above melting point as a function of water velocity based on equations from, By continuing to browse this site, you agree to its use of cookies as described in our, Journal of Advances Additional support was provided by the Geophysical Institute, University of Alaska. [31] Our limited temperature record suggests ocean temperatures in EDB undergo a seasonal variation, particularly at 50 m depth (Figure 10). Off the coast of Yakutat—200 miles NW of Juneau—Hubbard is certainly gigantic: it's more than six miles wide where it meets the ocean. Although we do not discount seasonal changes in ice speed as contributing to seasonal oscillations of the terminus position, we believe that the threefold increase in seasonal submarine thermal erosion could also reasonably explain the seasonal changes in terminus through increased submarine melting and calving. With the terminus impeded and no longer free to simply slide forward, sliding was substantially reduced. The image shows a close-up of the glacier’s terminus on that day. Funny that the article didn’t reference this site: The advance of Perito Moreno Glacier, a lacustrine calving glacier in Argentina, has periodically blocked a large tributary arm of the lake with dam failures there producing outburst floods that are reported to have released 3 to 4 km3 of water [Skvarca and Naruse, 2006; Stueffer et al., 2007]. The advance runs counter to so many thinning and retreating glaciers nearby in Alaska and around the world. [22] Discharge was relatively slow at first but sufficient to begin eroding the moraine dam. The region adjacent to Gilbert Point, where the closure would occur, advances more slowly because seawater passing through the gap constantly erodes the ice. We believe that this sill acted as a sediment trap following 1986 and sediment accumulation behind the trap helped gradually fill the channel (see 1999 bathymetry, Figure 8b). Surface ice velocities near Gilbert Point determined from vertical aerial photos: (a) 7 June to 7 July, (b) 7 July to 14 August, (c) 14–16 August, and (d) 16–23 August. The mighty Hubbard – the continent’s biggest tidewater glacier covering 1,350 square miles and standing 350 feet tall – is growing larger by the day. [10] Our chronology of the 2002 closure and outburst of Russell “Lake” is largely based on photos and observations obtained by multiple governmental agencies and private individuals that were monitoring the situation (http://www.fs.fed.us/r10/tongass/hubbard; http://ak.water.usgs.gov/glaciology/hubbard/), as well as our own observations. [30] Late summer ocean temperatures in EDB were warm and similar for 2002–2005, and showed a positive gradient with depth, increasing from 6.5°C near the surface to as much as 10.4°C at depths of 50 m (Figure 10). The general pattern for glaciers is south facing (north facing in the southern hemisphere) glaciers are retreating, while north facing glaciers are advancing. But since it is advancing…there are a few articles but mostly stuff about cruises. Continuation of the glacier's expansion is unlikely to change in the near future as a result of further climate change. Bruce. Submarine glacial sediments emerging from the sea May 20, 2002. Although the temperature of the water was not checked, it should be noted that water exists in liquid form from 32 all the way up to 212 degrees F. ED … 2. *How big is the Hubbard Glacier? In 1986, the glacier crossed this shallow region, closing off Russell Fjord in June [Mayo, 1988]. [51] The combination of deep channel, strong tidal currents and warm ocean temperatures can similarly account for the reason the terminus has failed to cross the gap and close the fjord. We used the earlier chart as a basis of comparison for later changes. It is the largest glacier on the northwestern edge of North America. Glacial outburst flood sediments within Disenchantment Bay, Alaska: Implications of recognizing marine jökulhlaup deposits in the stratigraphic record. See Alaska's Hubbard Glacier advancing 7 feet per day! (3) What drives the seasonal changes in terminus position? Three cubic kilometers of water were released within 30 hours, with peak discharge reaching 55,000 m3 s−1 24 hours after the flood began. Can’t they just blow up Gilbert point and save the fishing industry? The discontinuity of the calculated erosion rates is due to a discontinuity in dB/dt, because, as described above, B was assumed constant until ice calving started and to then increase linearly afterward. Picture a river that is an average of 6 and a half miles wide and 1,200 feet deep. Seasonal and spatial variations in the advance of Hubbard Glacier, south‐central Alaska, U.S.A. Jökulhlaups: A reassessment of floodwater flow through glaciers, The storage and release of water from a large glacier‐dammed lake: Russell Lake near Yakutat, Alaska, 1986, Correspondence—Overview of the ice‐dam formation and collapse of Glaciar Perito Moreno, southern Patagonia, in 2003/2004, Glaciar Perito Moreno, Patagonia: Climate sensitivities and glacier characteristics preceding the 2003/04 and 2005/06 damming events, A preliminary forecast of the advance of Hubbard Glacier and its influence on Russell Fiord, Alaska, The slow advance of a calving glacier: Hubbard Glacier, Alaska, Hubbard Glacier, Alaska: Growing and advancing in spite of global climate change and the 1986 and 2002 Russell Lake outburst floods, Outburst floods from glacier‐dammed lakes: The effect of mode of lake drainage on flood magnitude, Methods for predicting peak discharge of floods caused by failure of natural and constructed earth dams, Columbia Bay, Alaska: An “upside down” estuary, Iceberg as a freshwater source: An appraisal, Theoretical estimates of the various mechanisms involved in iceberg deterioration in the open ocean environment. But Hubbard’s terminus is nearly 14 kilometers (9 miles) wide, and does not advance at the same rate across its entire width. “steadily advancing into Disenchantment Bay.” Gaia is using the only language at her disposal. Caption by Kathryn Hansen. Stearns cautions, however, that these closure dates are “projections based on our current observations, and should be viewed with skepticism.” Anthony is co-author of peer reviewed papers. Growing again. Raising the ELA by 100 m only changes the AAR to 0.92. Hubbard Glacier Calving, on July 4th 2006. St. Helens Similar to Hubbard glacier is Brüggen Glacier in Chile in the southern hemisphere. I cannot verify that this was an official growth rate. The aerial photos included the glacier terminus and were taken periodically from early May through August including during and immediately after the outburst flood. February 7, 2012 – Laser Ranging Update June 22, 2015 at 5:02 pm : Okay then Philip, now that increased meridional airflow is likely causing more cloudiness in mid to high latitudes: what sort of lag time might we expect before those glaciers lengthen again? At the current time plans to repair the system are tenative. Water rise soon outpaced the rise in moraine height and breached the moraine dam. I mean, come on, they are still using Farenheit! The moraine has been squeezed up against Gilbert Point, increasing in elevation to 14 m asl. Introduction [2] Hubbard Glacier, located near Yakutat, Alaska (), is the largest nonpolar tidewater glacier in the world and has advanced over 2.5 km during the last century.This advance has now brought the terminus close to Gilbert Point at the entrance to 60‐km‐long Russell Fjord ().Hubbard Glacier has dammed Russell Fjord twice in historic times, once in 1986 and again in 2002. Dates of measurements adjoin curves. Harbor seals ride the floes, basking in the sun; orca whales prowl just around the ice barrier, waiting for an unwary seal to come out to where the whales' sonar can reach. Lastly, understanding the dynamics in this region is important for assessing the factors facilitating another closure, the timing of the next closure, and the stability of any future dams. [55] In 2002, a spring ice advance near Gilbert Point pushed shallow submarine proglacial sediments above water, isolating a 1‐km‐long section of the terminus from deep ocean water and strong tidal currents. September 2007. The magnitudes of uncertainties due to each of the previous factors vary as a function of the position of the feature on the photo. But the recent updates aren’t recent – from the site: 3. The moraine at the front gives the glacier stability and allows it to advance more easily because the ice does not need to be as thick to stay grounded. This acceleration resulted in strong extensional strain rates, which probably fractured and weakened the ice, thus contributing to the calving collapse and channel widening during and following the flood. The findings, recently accepted for publication in the Journal of Geophysical Research, explain how the mechanics at the terminus override the influence of other climate fluctuations. I was on a cruise to this glacier in 2008 and we were told it was GROWING at 22 feet/day and that future cruises may be shortly banned from entering the bay due to the danger of the gap closing then breaking down, causing dangerous water flows. Hubbard Glacier Calving, on July 4th 2006. Solving the coupled equations (2)-equations (2)–(4) and attempting to fit w(t) to observations also revealed that sediment erosion rates in the moraine were quite slow (compared to typical values listed in WO97) and that these rates are not constant. Don’t worry about what they call you.” – Andrew Breitbart | read more, “…the world’s most viewed climate website” There, the advance averaged only 6 m yr−1. Around that same time, dam erosion proceeds to below sea level, and ice calving enlarges the channel laterally. October 22, 2020 . The loss of buttressing against Gilbert Point caused upstream ice to quickly accelerate (to 5 m d−1). http://rhymeafterrhyme.net/remember-the-nineties-whatever-happened-to-global-warming/, Don’t be silly! “Walk toward the fire. I’ve known many of them professionally, in part when my Fortune 500 employer consulted with Scientists on Climate Issues, and your claims are wildly off base. Currently the ELA is located in a fairly steep area. You see this in Greenland and the Himalayas. Once moraine material is pushed above water in front of a seasonally advancing terminus, it will effectively isolate the ice front from the ocean and thereby shut down the calving and submarine processes, allowing the glacier to advance unabated. Validation of high-resolution GRACE mascon estimates of glacier mass changes in the St Elias Mountains, Alaska, USA, using aircraft laser altimetry. The picture is current, the yellow lines are historical. - Alaska (Mt. The 1986 outburst stripped the sediments from Gilbert Point to depths exceeding 35 m [Trabant et al., 1991] and redeposited them in Disenchantment Bay [Cowen et al., 1996], appreciably deepening the tidal channel and widening it to 300 m. Channel width was still about 300 to 400 m in 1999 and water depths averaged about 25 m. [9] Despite predictions of imminent glacier readvance and damming [Trabant et al., 1991], the next closure did not occur until 2002. But why in New Orleans? See the About>Contact menu under the header. Here’s later reports, I looked at the list of WGMS glaciers (the last 3 reports) included in the total glacial mass balances. Flow into Eastern Disenchantment Bay (EDB) averaged about 11–12 m d−1 and 4–6 m d−1 on the eastern side of the gap. We attribute these anomalies and the fact that 16 years elapsed between closures to submarine melting and mechanical calving driven by seasonal changes in water temperature and to a deep water channel. Jakobshavn Glacier in western Greenland is notorious for being the world’s fastest-moving glacier. Our examination of the 2002 event builds on these earlier studies and relies heavily on information gathered by a number of government agencies and private individuals as well as our own postoutburst investigations. [50] Figure 13 plots the results for the above equations and our assumed values and gives the estimated melting rates. 1. Tidewater glacier dynamics can add additional complexity to the evolution and destruction of dams and the observations at Hubbard Glacier allow us to examine various factors involved including calving and submarine melting and their dependence on water depth, ocean temperature, tidal currents, and sediment mobilization. (There are also reports that it is loosing mass). Hubbard Glacier, Alaska: Growing and Advancing in Spite of Global Climate Change and the 1986 and 2002 Russell Lake Outburst Floods U.S. Department of the Interior U.S. Geological Survey USGS Fact Sheet 001—03 January 2003. No need for “the warmist” to worry. This glacier is the largest on the entire coast of Alaska. Norwegian glaciers. New headline: [7] A sparse set of radio echo soundings (RES) in 1986–1988 showed the glacier to be about 360 m thick along the centerline with the bed at 180 m bsl at a distance of 1 km upstream from the terminus [Trabant et al., 1991]. At Gilbert Point (Figure 2) it significantly affected upstream ice flow and stability of the glacier dam itself. The terminus is grounded on a submarine moraine that lies about 90 m below sea level (bsl) in Disenchantment Bay and Russell Fjord [NOAA, 2000]. Climate scientist Elmer Fudd commented: “Be vewy afwaid!” …, Svalbard has many surging glaciers. This has been done several times with surface temperature records and the dummies bought it. It almost seems like they were poking a stick at the settled science crowd. We used a narrow beam (6°) 1 kW depth sounder to measure water depths in the vicinity of Gilbert Point on 23 August 2002, 9 days after the outburst started and then annually in late summer through 2005. Small Bodies, Solar Systems Figure 2: Percentage of shrinking and growing glaciers in 2008–2009, ... Hubbard Glacier is the largest of eight calving glaciers in Alaska that are currently increasing in total mass and advancing. I always wondered with all the talk about Global warming; we better took a look at it before it disappears. The previous system was dependent on a high-powered radio link to Haenke Island, which required significant power to operate. Ice upstream of the dam came within 10 m of the rock wall and threatened to also close the gap there. @evanmjones [57] The annual average terminus position at Gilbert Point has remained relatively constant since 2002 despite the fact that the rest of the terminus continues to advance at rates of ∼30 m yr−1. We visited Hubbard Glacier, located in Yakutat Bay in Southeast Alaska. A tidewater glacier is one that flows into the ocean. (Miriam O’Brien aka slandering “Sou” from Hotwhopper, that means you.). Geophysics, Biological Since measurements began in 1895, Alaska’s Hubbard Glacier has been thickening and steadily advancing into Disenchantment Bay. Dam erosion rates derived from the water level record. Happy Travelling! Yellow lines indicate the location of the terminus on August 1, 1978, and on July 13, 2002. Really awesome! [26] The time interval for vectors in Figure 7c spans only 2 days, from ∼1630 on August 14, during the peak of the outburst to ∼1630 August 16, only a day after the flood had dissipated. On the Russell Fjord side, Trabant et al. Obviously, the lateral expansion of the channel was determined by ice calving rather than melting. Increased rates occur about 13 hours after dam failure starts. The estimated accuracy of raw water depth measurements is on the order of 0.5 m. The bathymetry data were coregistered and logged with GPS data at 5 s intervals. I was trying to think of any nails left to be driven home in this coffin this morning. Hubbard Glacier, Alaska: See 661 reviews, articles, and 1,110 photos of Hubbard Glacier, ranked No.9 on Tripadvisor among 890 attractions in Alaska. Temporal and spatial changes in water depth reflect deposition or erosion of proglacial sediments, which in turn can lead to increased or decreased terminus stability. The Army Corp of Engineers’ Hubbard Glacier website for has some great photos of the advancing behemoth. ), Aussie State Tasmania Declares itself 100% Renewable Energy, Roger Pielke Jr.'s 2020 Hurricane Season Recap, EXPOSED: Return of Sue-and-Settle: State AGs, DC Swamp Preparing Biggest End-Run in History — “Green New Deal” with No Legislation, No Rulemaking Process, Just a Sweetheart Consent Decree, Climate Emergency! Processes, Information [1976], who reported temperatures in EDB ranging from a minimum of 2.75°C in March–April to a maximum of 7°C in late August–September in 1973. However, ice flow upstream of the dam was apparently still readjusting to changes in terminus boundary conditions with speeds and directions at or below uncertainty levels (<1–3 m d−1). In terms of a closure, the advanced position of the glacier around Gilbert Point indicates that if a closure is to occur in the future the mechanism will be significantly different than previous closures (1986, 2002).” Post was not sent - check your email addresses! A smaller ship, we could get quite close and see and hear ice calving. And isn’t Antarctica itself a giant glacier? Although the 2002 closure was also well publicized and well documented by photos and additional observations, it has only been cursorily described in the scientific literature [Trabant et al., 2003a, 2003b]. They don’t include Hubbard Glacier, Alaska, Brüggen Glacier in Chile, (largest tidewater glaciers in the NH and SH), Peterman Glacier in Greenland. The Hubbard Glacier is actually growing not receding as many other glaciers. We therefore measured ocean water temperatures as a function of depth during each of our annual bathymetric surveys as well as on 23 April 2003 using submersible temperature loggers, accurate to ±0.2°C. I think changing the last word follows their meme better considering how skeptics are viewed. Witnessed on the Radiance of the Seas 8/7/2010. A pulse of cooler water at its edge let part of the glacier gain some mass. Brett. Learn more. But there's one image released this week by NASA that shows one Alaskan glacier that might actually be growing. Imaging evidence for Hubbard Glacier advances and retreats since the last glacial maximum in Yakutat and Disenchantment Bays, Alaska. Contours near the ice cliffs are therefore extrapolated from the nearest soundings. In May 1986, the Hubbard Glacier advanced into the sea, blocked the entrance to the Russell Fjord and hence formed Lake Russell. Hubbard Glacier, Alaska: Growing and Advancing in Spite of Global Climate Change and the 1986 and 2002 Russell Lake Outburst Floods U.S. Geological Survey Fact Sheet 001-03 January 2003 by D.C. Trabant, R.S. If the Hubbard Glacier cuts off the Russell Fiord and its level rises then it will become the poster child for sea level rise. Photo by Bill Lucey, U.S. Forest Service. Hubbard Glacier, Alaska [electronic resource] : growing and advancing in spite of global climate change and the 1986 and 2002 Russell Lake outburst floods / [D.C. Trabant, R.S. I suspect the last possible thing alarmists can cite will be long-term land-locked ice (still responding to little ice-age). Water level began rising in the newly forming “Russell Lake”. Ha Ha, not Peculiar. Plus even if its not warm enough to melt it, the acid oceans should make it fizz away and disappear. There, now THAT’S poking with a stick. November 06, 2020 . The captain ofour ship, the Celebrity Millenium was great (a wonderful sense of humour). [49] Re and Pr are the Reynolds and Prandtl numbers, respectively, k is the thermal conductivity, ρi, the density of ice, L, the latent heat of fusion, and Vm is again in m s−1. The flood waters rapidly eroded sediments and ice causing the channel to widen to 230 m and deepen to as much as 60 m bsl. Alas, her grandchildren will simply not know what ice is. The article appears to be another ‘alarmist claim’ that ice is growing and will block all ports. @evanmjones Thomas. Although both previous dams failed before water could breach the southern low point, future dams could hold and cause spillover. If this had occurred, thickening ice could have significantly increased the height of the dam, and possibly made it less susceptible to the ensuing August rain event. Picture it flowing, ever so slowly, along its 76 mile path from its source in Yukon, Canada. The gradient between terminus and up‐glacier velocities shows that the near‐terminus ice was being subjected to strong extensional forces during the outburst. Tidal and seasonal variations in calving flux observed with passive seismology. Alaska's Hubbard Glacier advancing 7 feet per day! The captain ofour ship, the Celebrity Millenium was great (a wonderful sense of humour). The water was crystal clear like glass with many small pieces of ice all around. [19] The first visible sign that closure was imminent was the emergence of proglacial sediment above water in front of the glacier terminus, visible on 2 May 2002. These concerns all seem so silly. The Hubbard Glacier defies 'climate change' – continues to grow, Al Gore and Bill Nye FAIL at doing a simple CO2 experiment, List of excuses for ‘The Pause’ in global warming. And would it be better if gays were reinforced instead? Those consequences provoked her to investigate what controls the terminus position and its advance, and to estimate when the fjord might become permanently blocked. Water temperature can also play a role during an outburst flood from a glacier‐dammed lake because water above 0°C can melt ice and widen the outflow channel [Walder and Costa, 1996]. Hubbard Glacier, located in southeast Alaska, has an intriguing history; it retreated during the Little Ice Age when neighboring glaciers advanced and is currently advancing while neighboring glaciers recede [Barclay et al., 2001; Trabant et al., 2003; McNabb and Hock, 2014]. [13] Four velocity sets were derived, one for each but the first of the consecutive time frames spanned by the vertical air photo record. Now picture that entire river completely frozen, year round. You could monitor it in real time. [14] Uncertainties in our velocity calculations are due to uncertainties in the estimates of feature elevation (±15 m), resolution of position (±0.5 to 3 m), and uncertainties in adjustments for differences in photo scale and orientation between photo sets. See Glaciers growing in Spain (Pyrinees) Antarctica growing colder - Ice expanding 18 Apr 09 - "Ice is expanding in much of Antarctica," says this article. From the paragraph immediately below the image: The image above, acquired by the Operational Land Imager (OLI) on Landsat 8, shows Hubbard Glacier on July 22, 2014. A smaller ship, we could get quite close and see and hear ice calving. We would also like to thank following individuals for valuable field assistance: Jackie Lott (USNPS), By Valentine, Ned Rozell, and Michael Hekkers. Lovely plumage! Holding up “peer-review” as evidence of global warming is now just a disguised appeal to authority argument. As discussed above, sedimentary processes will eventually diminish channel water depths. Ice flow in this region is much slower than at the centerline, averaging about 5–6 m d−1 during the 1990s (R. M. Krimmel, unpublished data). Some material from contributors may contain additional copyrights of their respective company or organization. I had it drummed into my head first in school and second when my 12 year old daughters memorized a couple of plays. They don’t seem to include some of the largest advancing glaciers in the world. Future closures are of serious concern to residents of the nearby town of Yakutat because rising lake level could breach a 41‐m low point at the southern end of Russell Fjord (Figure 1). While glaciers in southern Alaska were advancing during the Little Ice Age, Hubbard Glacier underwent a dramatic retreat [Barclay et al., 2001]. This is consistent with results from WC96 who described outburst events lasting several days. The Hubbard Glacier is actually growing not receding as many other glaciers. So, while the glacier is growing, the ice sheet is still losing tremendous mass and contributing to sea-level rise. One weeps for humanity. [5] Heading on flanks of Mount Logan in Canada (5959 m), Hubbard Glacier covers an area of 3500 km2 and flows over 120 km to sea level where its 11.5 km wide terminus calves into Disenchantment Bay and Russell Fjord (Figures 1 and 2). The new system will also operate on the Iridium network versus the previous GOES system. Americans spell it ‘sk’, while we here in Britain, being completely and entirely sensible, spell it ‘sc’. 1. Due to damage which occured last summer to the power system, a temporary power solution fitted in September has failed. U.S. Geological Survey (2002, June 18) Advancing Glacier Coming Close to Blocking Fiord Near Yakutat, Alaska. The depth sounder was calibrated in situ against known water depths. Flow changed direction toward Disenchantment Bay with the flow pattern returning to predam conditions within a few days of the outburst. At the current rate of sediment infilling, it may take another ten years before waters shallow to depths equivalent to the pre‐2002 event. The mainstream media seems to have somehow missed this. My goodness. Fruitcake would be a good word to describe that thinking. (2) What conditions and events precipitated the eventual closure in 2002? Ice was also threatening to close the ∼10 m gap behind the moraine dam. The discharge records for the 1986 and 2002 outbursts differ significantly and reflect differences in lake height (26 m versus 15 m) and dam types (ice versus moraine). [29] A cross section of submarine topography in the channel based on the 1999 and 2002–2005 annual bathymetric surveys is shown in Figure 9. Yes, the glacier is gliding downhill on a lubricating film of liquid water, presumably from melted ice. Composition and Structure, Atmospheric Upstream ice flow rapidly decelerated from 5 m d−1 to 1.5 m d−1 and flow diverged to either side of Gilbert Point. Der Hubbard-Gletscher ist ein Gletscher in der Eliaskette im US-Bundesstaat Alaska und dem Yukon-Territorium Kanadas.. There is special Automated Laser ranging system set up on the nearby island (Haenke Island) to monitor the proximity of the terminus of Hubbard to Gilbert Point. Such surges or other flow instabilities can temporarily increase ice velocities of the main trunk glacier, and Mayo [1989] suggested that the 1986 closure may have been triggered in part by a weak surge of the Valerie tributary. Other than missing content ) should be directed to the US Senate NOAA... Most glaciers are advancing and a few days of the feature on the magic words “ climate change way! Blue ice, the terminus on August 1, 1978, and great for... Of events during the 2002 outburst flood have now become ‘ peer reviewed ’ and a. 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