Sentences with phrase «ice data sources»

In addition to the satellite data, the Walsh study includes a Table 1 that lists some other very impressive ice data sources.

Other leading sea ice data sources are NASA, NOAA and the University of Bremen.

Resources Here's a useful aggregation of sea ice data sources.

Not exact matches

The source of a mysterious glitch in data from a gravitational wave detector has been unmasked: rap - tap - tapping ravens with a thirst for shaved ice.

Published in their final form last week in the journal Geophysical Research Letters, the maps draw on a variety of data sources, including satellite radar and aerial imagery, as well as special sonar data collected on ship expeditions to the front of the ice sheet.

Despite being trumpeted in certain circles as meaning that there's really nothing to worry about regarding the Greenland ice sheet, the authors made a point of noting (although not in this press release) that an additional source of mass loss needs to be identified in order to reconcile their results with the GRACE data (which do not show a reduction in mass loss for the same period).

Puncak Jaya is the only place to get ice core data from the western side of what's known as the Pacific Warm Pool the single largest heat source to the global atmosphere.

Combining the existing ISO, Spitzer, VLT and Keck ice data results in a large sample of ice sources (\ sime80) that span all stages of star formation and a large range of protostellar luminosities (< 0.1 - 105 L \ odot).

It is important to regard the LGM studies as just one set of points in the cloud yielded by other climate sensitivity estimates, but the LGM has been a frequent target because it was a period for which there is a lot of data from varied sources, climate was significantly different from today, and we have considerable information about the important drivers — like CO2, CH4, ice sheet extent, vegetation changes etc..

Note that other large eruptions occurred during the last 600 years, according to tree ring and ice core data, but are not indicated here because the source volcano is unknown (e.g. 1809).

The endeavor becomes more scientifically challenging in light of the large variety of information sources about past climate, including tree rings, coral, glacier ice, and marine and lake sediments, not to mention the complicated array of data that are used to establish the timelines that underlie the paleoclimate records.

Conservative tracer studies using stable oxygen isotopic data from 307 sites show that while the entire surface of this area receives abundant freshwater from meteoric sources, freshwater from sea ice melt is most closely linked to the areas of carbonate mineral undersaturation.

Paleoclimatology data are derived from natural sources such as tree rings, ice cores, corals, and ocean and lake sediments.

It may be that ice records are the only sources of paleoclimate data he knows about.

Note that other large eruptions occurred during the last 600 years, according to tree ring and ice core data, but are not indicated here because the source volcano is unknown (e.g. 1809).

Shallow coastal waters that cool quickly may provide lingering April ice in the Arctic in 120 years or so, justifying a sigmoid treatment of the source function at that time, but perhaps it is not appropriately applied to September data now.

-- New data sources, like ice - cores.

The IPCC said:» Ice extent data from Russian sources have recently been published (Polyakov et al., 2003), and cover essentially the entire 20th century for the Russian coastal seas (Kara, Laptev, East Siberian and Chukchi).

... We've used a range of new data sources to fill gaps and extend the Arctic sea ice record back to 1850.

The source document, the Intergovernmental Panel on Climate Change (IPCC) 2007 Fourth Assessment Report (AR4), has been under harsh scrutiny over the past weeks for a number of blunders, including the Climategate scandal, bogus claims about Himalayan glacier melt, false assertions The Netherlands are drowning, deceptive hysteria over conditions in the Amazon, exaggerations of vanishing polar ice caps, and fraudulent cover - up of Chinese temperature data.

For a complete technical description of other CO2 data problems (including ice core data), see my reference source — an article by a geochemist and geophysicist (Tom V. Segalstad, Carbon Cycle Modeling..., http://www.co2web.info/ESEF3VO2.pdf).

Figure 3 (Data sources here and here) There is a secular warming trend that has persisted since the end of the Little Ice Age in the 19th century.

On the other hand, our other source of pre-1800s data (ice cores) match the pre-1800 tree rings and we have a hypothesis whereby the slowdown is a new phenomenon.

This «new evidence» is based on a single analysis of «proxy» data (that is, data that do not come from thermometers but rather from sources like tree rings, ice cores, corals, and ocean and lake sediments) showing the twentieth century to be the warmest in the past thousand years.

Keeling's record of data from Mauna Loa is considered one of the best and most consistent climate records anywhere, though scientists also use other sources for atmospheric data, including samples of air trapped in polar ice, to analyze CO2 levels in past millennia.

The ice core data revealed that BC reached values of 20 - 50 ng / g in the 1950s and 1960s for the four stations that are downwind of European pollution sources.

The multi source data available at WUWT's Sea Ice page indicates that every year since 2007 - storm induced 2012 anomaly removed - the minima have gone back up.

Researchers used data from IceBridge's ice - penetrating radar — the Multichannel Coherent Radar Depth Sounder, or MCoRDS, which is operated by the Center for Remote Sensing of Ice Sheets at the University of Kansas, Lawrence, Kan. — to determine ice thickness and sub-glacial terrain, and images from satellite sources such as Landsat and Terra to calculate velociice - penetrating radar — the Multichannel Coherent Radar Depth Sounder, or MCoRDS, which is operated by the Center for Remote Sensing of Ice Sheets at the University of Kansas, Lawrence, Kan. — to determine ice thickness and sub-glacial terrain, and images from satellite sources such as Landsat and Terra to calculate velociIce Sheets at the University of Kansas, Lawrence, Kan. — to determine ice thickness and sub-glacial terrain, and images from satellite sources such as Landsat and Terra to calculate velociice thickness and sub-glacial terrain, and images from satellite sources such as Landsat and Terra to calculate velocity.

NSIDC is not the only data source for ice extent; their estimate is based on a long - term time series and we use their value as an operational definition.

Our sea ice prediction data sources come from the National Snow and Ice Data Centice prediction data sources come from the National Snow and Ice Data Cendata sources come from the National Snow and Ice Data CentIce Data CenData Center.

National Snow & Ice Data Center (NSIDC)-- The Perry - Castañeda Library Map Collection — click to view at source

Ice - ocean model simulations, on the other hand, have requirements with respect to data density and quality, e.g., for observed ice thickness fields used in initialization of model runs, that are currently not being met by existing data sources (with the exception of, e.g., satellite - observed ice concentration fieldIce - ocean model simulations, on the other hand, have requirements with respect to data density and quality, e.g., for observed ice thickness fields used in initialization of model runs, that are currently not being met by existing data sources (with the exception of, e.g., satellite - observed ice concentration fieldice thickness fields used in initialization of model runs, that are currently not being met by existing data sources (with the exception of, e.g., satellite - observed ice concentration fieldice concentration fields).

An additional source of data for the first half of the 20th century is the recent digitization of the Norwegian Polar Institute's sea - ice charts by T. Vinje and R. Colony (Vinje, 1999).

Two years later another large 2 - Manhattan sized ice island formed from the same glacier, but this time we were better prepared and people world - wide went directly to our data, thoughts, and stories when this blog was sourced in news papers in France, Germany, and China.

The source data is basically crap that is set on fire and beaten with an ice pick in an attempt to make it pretty.

The primary sources of the post-1972 data are the hemispheric fields of sea - ice concentration from (1) the U.S. National Ice Center (NIC), whose weekly grids (derived primarily from satellite data) span the period 1972 - 1994, and (2) the satellite passive - microwave grids from the Scanning Multichannel Microwave Radiometer (SMMR) / Special Sensor Microwave / Imager (SSM / I) period, 1978 - 97 (Parkinson and others, 199ice concentration from (1) the U.S. National Ice Center (NIC), whose weekly grids (derived primarily from satellite data) span the period 1972 - 1994, and (2) the satellite passive - microwave grids from the Scanning Multichannel Microwave Radiometer (SMMR) / Special Sensor Microwave / Imager (SSM / I) period, 1978 - 97 (Parkinson and others, 199Ice Center (NIC), whose weekly grids (derived primarily from satellite data) span the period 1972 - 1994, and (2) the satellite passive - microwave grids from the Scanning Multichannel Microwave Radiometer (SMMR) / Special Sensor Microwave / Imager (SSM / I) period, 1978 - 97 (Parkinson and others, 1999).

There IS a heat source and a physical reality, that requires no forcing to give it super powers as with puny CO2 the palnts gobble up as much as they can get of, in fact.And explains the stable ice age and the Milankovitch linked interglacials, and how that sawtooth between repeated and predicatble limits can be driven using known energy sources, specific heats and masses, plus simple deterministic physics, no statistical models or Piltdown Mann data set approaches.

Tree growth rings, ice cores, weather stations, and other continuous, land - based sources of data help researchers study the effects of natural vs. human contributions to climate change.

From a combination of climate models, satellite data, and paleoclimate records the scientists conclude that the West Antarctic ice sheet, Arctic ice cover, and regions providing fresh water sources and species habitat are under threat from continued global warming.

SOURCE: National Snow and Ice Data Center, http://nsidc.org/arcticseaicenews.

From a combination of climate models, satellite data, and paleoclimate records, Hansen and co-author Makiko Sato of Columbia's Earth Institute, conclude that the West Antarctic ice sheet, Arctic ice cover, and regions providing fresh water sources and species habitat are threatened from continued global warming.

If other data sources for sea ice extent are used, the corresponding mean monthly ice extent values can be adjusted by an offset to roughly correspond to the NSIDC value.

Yes we are at the end of an ice age, so earth should be warming slowly but what current data taken from points all over the world in ice cores, recorded temperatures, coral cores, and a large variety of other exact sources.

Ice concentrations are generally lower in the central Arctic for the these data than for other data sources.

The red line reflects Arctic and Antarctic Research Institute (AARI) data, which is based on historical sea ice charts from several sources (aircraft, ship, and satellite observations).

If you're curious, the source of the data used to make the drawing is «The Laurentide and Innuitian ice sheets during the Last Glacial Maximum»; by A.S. Dyke et.

Links to other sources of sea ice data are listed below:

Well, NOAA and the National Snow and Ice Data Center (NSIDC) are worried, and unlike Revkin, they have published science to back them up — see NSIDC bombshell: Thawing permafrost feedback will turn Arctic from carbon sink to source in the 2020s, releasing 100 billion tons of carbon by 2100.

While ice thickness is difficult to measure using satellites, a variety of data sources and estimates indicate that the Arctic ice cover remains thin.

PRESS RELEASE Date Released: Tuesday, December 20, 2005 Source: Goddard Space Flight Center In the first direct, comprehensive mass survey of the entire Greenland ice sheet, scientists using data from the NASA / German Aerospace Center Gravity Recovery and Climate Experiment (Grace) have measured a significant decrease in the mass of the Greenland ice cap.