This video was taken in the summer of 2011 during an Alaskan cruise. Is shows great scenes of the glacier calving and creating massive waves. Although all of the information presented in this description is accurate and sourced from the USGS, a government agency, YouTube has chosen to flag it with a misleading climate change information panel.
The video was taken from Disenchantment Bay and over one mile away from the terminal point. Near the end of the video you will see a land mass called Gilbert Point. The 76-mile long glacier has been advancing at a rate of about 80 feet per year since 1895.
Calving Glaciers are Unresponsive to Climate.
Hubbard Glacier is defying the global paradigm of valley or mountain glacier shrinkage and retreat in response to global climate warming. Hubbard Glacier is the largest of eight calving glaciers in Alaska that are currently increasing in total mass and advancing. All of these glaciers calve into the sea, are at the heads of long fiords, have undergone retreats during the last 1,000 years, calve over relatively shallow submarine moraines, and have unusually small ablation areas compared to their accumulation areas.
For example, Hubbard Glacier retreated about 38 miles between 1130 A.D. and late in the 19th century (fi g. 1). The fiord bottom lies 1,300 feet below sea level under the glacier, shallows to a depth of 200-250 feet at the glacier calving terminus, and then deepens again to as much as 750 feet below sea level down Disenchantment Bay. The accumulation area of Hubbard Glacier is 95 percent of the entire glacier area and, like the other growing calving glaciers, is far from being in equilibrium with climate.
The large calving glaciers that are currently advancing have been discordant with climate-driven glacier changes for a very long time. The glaciers that are currently growing and advancing in the face of global warming were retreating throughout the Little Ice Age (AD1350 or 1450 to AD1900) when most glaciers were growing.
Ref: USGS [ Ссылка ]
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