Sentences with phrase «ice thickness record»

• Create a Bias - corrected Observed Ice Thickness Record consisting of all of the observations in the Sea Ice CDR adjusted by subtracting a constant bias for each system which is found relative to a standard observation system (submarines).

• Calibrate the retrospective simulations of ice thickness from our numerical model against the aggregate of all the observation systems by removing the mean difference between the model and the observations to create a Calibrated Model Ice Thickness Record.

Satellite - derived estimates of sea - ice age and thickness are combined to produce a proxy ice thickness record for 1982 to the present.

Progress towards establishing ice thickness records from satellite (ICESat, Envisat, and CryoSat - 2) will change this over time, but these sources won't yield a record before these measurements began and satellite retrievals of ice thickness have their own issues.

Not exact matches

AWI researchers observed a considerable decrease in the thickness of the sea ice as early as the late summer of 2015, even though the overall ice covered area of the September minimum ultimately exceeded the record low of 2012 by approximately one million square kilometres.

In the area surveyed, which lies to the north of the Fram Strait between Greenland and Svalbard, the sea - ice thickness was ca. 1.7 metres, roughly 50 centimetres more than was recorded in 2016.

Unlike the Arctic, there is no long - term submarine record of ice thickness — but with the warming Southern Ocean, it seems likely that that has been going on as well.

Sea ice volume measurements, which take ice thickness into account, also hit a record low this year.

NASA and the USGS have used MRO instruments to analyze the vertical structure and thickness of buried ice sheets, which preserve a detailed record of the Red Planet's past and could provide future human explorers with an easily - accessible water supply.

Lindsay, R. W. (2010), New Unified Sea Ice Thickness Climate Data Record, Eos Trans.

To establish this uncertainty in the ice - volume record (Schweiger et al. 2011), we spent a significant effort drawing on most types of available observations of ice thickness thanks to a convenient compilation of ice thickness data (Lindsay, 2010).

The two papers don't mention any velocity changes due to increased slope, but they do record that at elevations above 1500 - 2000 m, the ice has been growing in thickness by about 5 - 6 cm / yr, whereas below the 1500m level there's been a thinning of about -2 cm / yr.

Analysis of the new record shows that since a peak in 1980, sea ice thickness has declined 53 percent.

Even though this is not a continuous record it will provide representative information on the ice thickness variability in the region if this is done every 10 to 20 kilometers — the typical daily distance [they traverse].

Sea ice volume measurements, which take ice thickness into account, also hit a record low this year.

Present ice thickness, extent, and ocean heat observations suggest a new record might be possible.

Aspin et al., 4.0, Heuristic Sea ice extent is greater on 05 June 2013 than a year ago, however ice thicknesses and volumes are, on average, the lowest on record.

Corrigendum to «Using records from submarine, aircraft and satellites to evaluate climate model simulations of Arctic sea ice thickness» published in The Cryosphere, 8, 1839 - 1854, 2014.

Reasoning for a decrease in sea ice extent from recent years, perhaps approaching new record - low minimum, focuses on the below - normal sea ice thickness overall, the thinning of sea ice in coastal seas, rotting of old multi-year sea ice, warm temperatures in April and May 2010, and the rapid loss of sea ice area seen during May.

Reasoning for a new record minimum focuses on the below - normal ice thickness overall, the thinning of sea ice in coastal seas, rotting of old multi-year sea ice, and the rapid loss of sea ice area seen during May.

THERE HAS BEEN A WARMING TREND FROM THE 70s THRU THE LATE 90s,... accompanied by other changes tied to a warming trend (record low arctic sea ice extent & thickness, retreating glaciers, retreating snow lines, warming ocean surface temps, increases in sea height, de-alkalinizing oceans).

Add in the fact that the thickness of the ice, which is much harder to measure, is estimated to have fallen by half since 1979, when satellite records began, and there is probably less ice floating on the Arctic Ocean now than at any time since a particularly warm period 8,000 years ago, soon after the last ice age.

Going back even farther, I. V. Polyakov and others examined Russian historical records of Arctic sea ice extent and thickness starting from the year 1900.

• Expand our existing Unified Sea Ice Thickness Climate Data Record (Sea Ice CDR) to include ICESat, IceBridge, and CryoSat - 2 estimates of the ice thickneIce Thickness Climate Data Record (Sea Ice CDR) to include ICESat, IceBridge, and CryoSat - 2 estimates of the ice tThickness Climate Data Record (Sea Ice CDR) to include ICESat, IceBridge, and CryoSat - 2 estimates of the ice thickneIce CDR) to include ICESat, IceBridge, and CryoSat - 2 estimates of the ice thickneice thicknessthickness.

``... examination of records of fast ice thickness and ice extent from four Arctic marginal seas (Kara, Laptev, East Siberian, and Chukchi) indicates that long - term trends are small and generally statistically insignificant, while trends for shorter records are not indicative of the long - term tendencies due to strong low - frequency variability in these time series, which places a strong limitation on our ability to resolve long - term trends....

The Canadian Ice Service notes: The reduced overall sea ice thicknesses and the greater proportion of seasonal (first - year) ice were the primary reasons for this year's record - breaking minimIce Service notes: The reduced overall sea ice thicknesses and the greater proportion of seasonal (first - year) ice were the primary reasons for this year's record - breaking minimice thicknesses and the greater proportion of seasonal (first - year) ice were the primary reasons for this year's record - breaking minimice were the primary reasons for this year's record - breaking minimum.

«The current rate of sea ice loss, and the reduced thickness of large areas of the ice remaining, suggests that we may see yet another record minimum in summer sea ice extent this year.»

The mean ice concentration anomaly for June 2013 is 0.9 x 106 square kilometers greater than June 2012, however Arctic sea ice thicknesses and volumes continue to remain the lowest on record.

Arctic sea ice extent and thickness have declined substantially, especially in late summer (September), when there is now only about half as much sea ice as at the beginning of the satellite record in 1979 (Ch.

So, prompted by reports of the heaviest sea ice conditions on the East Coast «in decades» and news that ice on the Great Lakes is, for mid-April, the worst it's been since records began, I took a close look at ice thickness charts for the Arctic.

Similarly, records of fast ice thickness and extent in four Arctic marginal seas (Kara, Laptev, East Siberian, and Chukchi) indicate that long term trends are small and generally statistically insignificant, although correlation degrades eastwards and is absent in the Chukchi Sea.

Walt Meier Research Scientist, Cryospheric Sciences Lab, NASA Goddard Space Flight Center Specialties: Sea ice remote sensing; changes in sea ice concentration, extent, motion, thickness and age; development of sea ice climate data records; interaction of sea ice and climate

NOAA@NSIDC is pleased to announce that the Unified Sea Ice Thickness Climate Data Record, 1947 Onward has been updated with data through 01 January 2017 and now also contains Antarctic... Read more»

In addition, records from Russian coastal stations show the extent and thickness of sea ice has varied greatly over 60 - to 80 - year periods during the last 125 years.

Satellite - based altimetry measurements, often supplemented by similar measurements from aircraft, hold promise for obtaining basin - scale ice thickness information (e.g., Laxon et al., 2003; Giles et al., 2008; Kwok et al., 2009) and currently provide about a decade - long record.

Examination of records of fast ice thickness (1936 — 2000) and ice extent (1900 — 2000) in the Kara, Laptev, East Siberian, and Chukchi Seas provide evidence that long - term ice thickness and extent trends are small and generally not statistically significant, while trends for shorter records are not indicative of the long - term tendencies due to large - amplitude low - frequency variability.

Recall the long - term military submarine record of decreasing seasonal Arctic sea ice thickness that was kept secret for over a decade?

Using Envisat radar altimeter data, scientists from the Centre for Polar Observation and Modelling at University College London (UCL) measured sea ice thickness over the Arctic from 2002 to 2008 and found that it had been fairly constant until the record loss of ice in the summer of 2007.

The team established a group of un-manned scientific platforms, collectively called an observatory, to record data throughout the remainder of the year on everything from the salinity of the water to the thickness and temperature of the ice cover.

Global Climate Change Record 10 - 19 % Declines Seen in Arctic Sea Ice Thickness Last Winter, Satellite Data Reveals Argentine Glacier (Perito Moreno) Breaks in Winter for the First Time Ever OK Grasshopper, This Is What You SHOULD Have Done to Prepare

Will everyone be willing next to audit the ice area and thickness records?