Search for GCW datasets

The Global Cryosphere Watch catalogue is yet not considered an operational service. It is populated with metadata harvested from a number of contributing data centres, but data remains in the original location and are served through the interfaces supported by the originating data centre. The process of harvesting, filtering and translating metadata is still under development and will be modified through dialogue with contributing data centres and WMO activities organised through WIS and WIGOS.

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Dataset name Topics and variables Contact (E-mail) Abstract
bas-GB-NERC-BAS-AEDC-00002
Agriculture > Soils > HIDDEN
Atmosphere > Atmospheric Radiation > HIDDEN
Atmosphere > Atmospheric Temperature > HIDDEN
Atmosphere > Atmospheric Water Vapor > HIDDEN
BIOSPHERE > PLANT TAXONOMY > HIDDEN
Cryosphere > Frozen Ground > HIDDEN
Land Surface > Frozen Ground > HIDDEN
Land Surface > Land Temperature > HIDDEN
Land Surface > Soils > HIDDEN
pdc@bas.ac.uk Automatic data loggers are often used to monitor environmental variables such as temperature (of air and soil), humidity, wind speed and radiation in microclimates where experimental or ecological studies are being carried out. Some loggers are only in operation for a few weeks or months while others have been run for several years. Loggers have been sited in a wide variety of locations from the sub-Antarctic (South Georgia), South Orkney Islands (Signy) various Peninsula sites (as far south as Alexander Island - 70S), and some continental localities (e.g. Victoria Land). These form an important data resource to the climate conditions experienced by Antarctic terrestrial organisms. Various types of logger are used. Sensors tend to be deployed at or near ground level and in and around particular types of vegetation, or other experimental sites, such as cloches. Loggers used include Grant, Delta-T, Campbell and Squirrels. Victoria Land data for Kay Island and Edmonson Point in 1995 and 1996 was collected under the BIOTEX 1 experiment of the SCAR BIOTAS (Biological Investigations of Terrestrial Antarctic Systems) Programme. An overview of BIOTEX is available as a PDF file.
bas-GB-NERC-BAS-AEDC-00063
BIOSPHERE > AQUATIC HABITAT > HIDDEN
Biosphere > Ecological Dynamics > HIDDEN
BIOSPHERE > MICROBIOTA > HIDDEN
Cryosphere > Snow/Ice > HIDDEN
HYDROSPHERE > SNOW/ICE > HIDDEN
HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > HIDDEN
pdc@bas.ac.uk The long term monitoring of water chemistry in Signy Island lakes is unique in polar limnology, in its duration (30+ years), detail, and range of sites. It details seasonal patterns of snow and ice cover, inorganic nutrient status and chlorophyll-a and includes vertical profiles of various physical chemical parameters. There are detailed data for several study lakes and twice/thrice yearly analyses for all the Signy Island lakes. Temperature and light climate has been studied in certain lakes using automatic data loggers. Micrometeorological monitoring with additional data loggers provided data on solar radiation (PAR, UVR), air temperature, humidity and wind conditions. Data are collected by chemical analysis, use of temperature, pH light probes and observation. The ''grand prix'' was the sampling of 16 lakes in a short period (approx. one week), this was carried out perhaps two or three times a year. Approximately three to five lakes were sampled monthly or fortnightly in more detail, these were representative of the 16 lakes. Comparative studies were also undertaken in the Arctic. The long-term programme was established in 1971, although some observations were made in 1963/1964 and 1969/1970. The programme finished in 2004. As the exact months of the data collection were not provided, and the metadata standard requires a YYYY-MM-DD format, this dataset has been dated as 1st January for start date, and 31st December for stop date.
bas-GB-NERC-BAS-AEDC-00252
Cryosphere > Glaciers/Ice Sheets > HIDDEN
Cryosphere > Snow/Ice > HIDDEN
Land Surface > Topography > HIDDEN
pdc@bas.ac.uk The BEDMAP (Bed Topography of the Antarctic) database contains data collected on surveys over the past 50 years that describe the thickness of the Antarctic ice sheet. This has allowed the compilation of a suite of seamless digital topographic models for the Antarctic continent and surrounding ocean. The suite includes grids representing: - ice-sheet ... thickness over the ice sheet and shelves, - water-column thickness beneath the floating ice shelves, - bed elevation beneath the grounded ice sheet, - bathymetry to 60 degrees South including the areas beneath the ice shelves. These grids are consistent with a recent high-resolution surface elevation model of Antarctica. While the digital models have a nominal spatial resolution of 5 km, such high resolution is not strictly justified by the original data density over all parts of the ice sheet. The suite does however provide an unparalleled vision of the geosphere beneath the ice sheet and a more reliable basis for ice sheet modelling. The bed elevation DEM, which includes the entire geosphere south of 60 degrees South, provides an improved delineation of the boundary between East and West Antarctica and sheds new light on the morphology of the contiguous East Antarctic landmass, much of which is buried below an average of 2500 m of ice.
bas-GB-NERC-BAS-AEDC-00260
Biosphere > Ecological Dynamics > HIDDEN
BIOSPHERE > FUNGI > HIDDEN
BIOSPHERE > MICROBIOTA > HIDDEN
BIOSPHERE > PLANT TAXONOMY > HIDDEN
Cryosphere > Frozen Ground > HIDDEN
Land Surface > Soils > HIDDEN
pdc@bas.ac.uk Three plant species, the leafy liverwort Cephaloziella varians and the angiosperms Deschampsia antarctica and Colobanthus quitensis, were sampled from 12 islands across a 1480 km latitudinal gradient from South Georgia through to Adelaide Island. Samples were collected to determine the abundance of dark septate fungi in Antarctic plant and soil communities and the effects of these organisms on plant growth. Where the target species were found in sufficient numbers to allow sampling, it proved possible to collect at least 10 samples of each species. At least 10 soil samples were collected from each site where Deschampsia was found. Plants, with intact roots and soil, were transported back to the UK using cool and frozen stowage. Additionally, intact live plants were transported to the UK in an illuminated cabinet. Seeds of the two key species (Deschampsia antarctica and Colobanthus quitensis) were also collected at Bird Island and South Georgia. As the exact months of the data collection were not provided, and the metadata standard requires a YYYY-MM-DD format, this dataset has been dated as 1st January for start date, and 31st December for stop date.
bas-GB-NERC-BAS-AEDC-00262
Biosphere > Ecological Dynamics > HIDDEN
BIOSPHERE > FUNGI > HIDDEN
BIOSPHERE > MICROBIOTA > HIDDEN
BIOSPHERE > PLANT TAXONOMY > HIDDEN
Cryosphere > Frozen Ground > HIDDEN
Land Surface > Soils > HIDDEN
pdc@bas.ac.uk This study investigated the status of dark septate (DS) fungi in Antarctic plant and soil communities, with the aim of determining the abundance of DS fungi in plant roots and rhizoids, their taxonomic affinities and their symbiotic status. Abundances of fungal hyphae were recorded in roots and rhizoids, and fungi were isolated and identified. Sequencing of ITS (internal transcribed spacer) regions of rDNA indicated that some isolates share taxonomic affinities with fungi of known symbiotic status. Synthesis experiments assessed the effects of DS fungal isolates, including H. ericae, on the growth and nutrient balance of their host plants. Seeds of Deschampsia antarctica and Colobanthus quitensis were collected for use in ecophysiological experiments.
bas-GB-NERC-BAS-AEDC-00270
Atmosphere > Precipitation > HIDDEN
Cryosphere > Glaciers/Ice Sheets > HIDDEN
Cryosphere > Snow/Ice > HIDDEN
HYDROSPHERE > SNOW/ICE > HIDDEN
pdc@bas.ac.uk The Antarctic snow accumulation map is derived from a compilation of field measurements. Satellite observations from AMSR-E and AVHRR (Advanced Microwave Scanning Radiometer-EOS and Advanced Very High Resolution Radiometer) instruments are used to guide the interpolation. The effective resolution of the map is approximately 100 km. The estimates of root mean square percentage error apply to regional averages at scales of around 100 km by 100 km. On smaller scales, additional deviations of 30% r.m.s. are likely. Values for locations subject to melt may be unreliable. Units are (kg/m2/a), or (mm/a) water equivalent.
bas-GB-NERC-BAS-AEDC-00272
Cryosphere > Glaciers/Ice Sheets > HIDDEN
HYDROSPHERE > GLACIERS/ICE SHEETS > HIDDEN
OCEANS > MARINE SEDIMENTS > HIDDEN
Oceans > Sea Ice > HIDDEN
Paleoclimate > Ocean/Lake Records > HIDDEN
Solid Earth > Geomorphology > HIDDEN
SOLID EARTH > ROCKS/MINERALS > HIDDEN
pdc@bas.ac.uk Sediments cores collected aboard the RRS James Clark Ross (JR104) in the Bellingshausen Sea, 2004. This work was carried out as part of the first systematic investigation of the former ice drainage basin in the southern Bellingshausen Sea. Reconnaissance data collected on previous cruises JR04 (1993) and cruises of R/V Polarstern in 1994 and 1995 suggested that this area contained the outlet of a very large ice drainage basin during late Quaternary glacial periods. The data and samples collected allowed us to address questions about the timing and rate of grounding line retreat from the continental shelf, the dynamic character of the ice that covered the shelf, and its influence on glaciomarine processes on the adjacent continental slope.
bas-GB-NERC-BAS-AEDC-00273
Cryosphere > Glaciers/Ice Sheets > HIDDEN
HYDROSPHERE > GLACIERS/ICE SHEETS > HIDDEN
Oceans > Bathymetry/Seafloor Topography > HIDDEN
OCEANS > MARINE SEDIMENTS > HIDDEN
Oceans > Sea Ice > HIDDEN
Solid Earth > Geomorphology > HIDDEN
pdc@bas.ac.uk Swath bathymetry data were collected using a EM120 multibeam echo sounder and the TOPAS sub-bottom profiling system aboard the RRS James Clark Ross (JR104) in the Bellingshausen Sea, 2004. This work was carried out as part of the first systematic investigation of the former ice drainage basin in the southern Bellingshausen Sea. Reconnaissance data collected on previous cruises JR04 (1993) and cruises of R/V Polarstern in 1994 and 1995 suggested that this area contained the outlet of a very large ice drainage basin during late Quaternary glacial periods. The data and samples collected allowed us to address questions about the timing and rate of grounding line retreat from the continental shelf, the dynamic character of the ice that covered the shelf, and its influence on glaciomarine processes on the adjacent continental slope.
bas-GB-NERC-BAS-AEDC-00289
Cryosphere > Glaciers/Ice Sheets > HIDDEN
HYDROSPHERE > GLACIERS/ICE SHEETS > HIDDEN
OCEANS > MARINE SEDIMENTS > HIDDEN
Paleoclimate > Ocean/Lake Records > HIDDEN
pdc@bas.ac.uk A transect of cores was taken from shelf to deep sea west of the Antarctic Peninsula off Marguerite Bay using a 12 m RVS piston corer, box corer and BGS vibrocorer deployed from RSS James Clark Ross cruise JR71 (12 days sea-time in 2001-2002). Successful coring and examination of sediments now on and immediately beneath the sea floor, which provided the deforming bed of the former ice stream, enhanced our understanding of conditions beneath ice streams. Data was collected as part of a project was to reconstruct the Late Quaternary dynamics of the Antarctic Peninsula Ice Sheet in Marguerite Bay and to compare sedimentation and ice-rafted debris records with the Larsen Ice Shelf area, on the other side of the Antarctic Peninsula. The mapping of streamlined sedimentary bedforms on the outer shelf has allowed the dimensions of a former fast-flowing ice stream present at the Last Glacial Maximum to be defined. This, in turn, enabled estimates of the past magnitude of ice flow through this glacial system to be calculated.
bas-GB-NERC-BAS-AEDC-00290
Cryosphere > Glaciers/Ice Sheets > HIDDEN
HYDROSPHERE > GLACIERS/ICE SHEETS > HIDDEN
Oceans > Bathymetry/Seafloor Topography > HIDDEN
OCEANS > MARINE SEDIMENTS > HIDDEN
pdc@bas.ac.uk This dataset relates to geophysical marine data collected onboard the RRS James Clark Ross (JR71) during 2002, which built on swath bathymetry and TOPAS survey undertaken on the JR59 cruise in 2001. Data was collected using Kongsberg-Simrad EM120 multibeam swath bathymetry and a TOPAS sub-bottom profiler. Data was collected as part of a project was to reconstruct the Late Quaternary dynamics of the Antarctic Peninsula Ice Sheet in Marguerite Bay and to compare sedimentation and ice-rafted debris records with the Larsen Ice Shelf area, on the other side of the Antarctic Peninsula. The mapping of streamlined sedimentary bedforms on the outer shelf has allowed the dimensions of a former fast-flowing ice stream present at the Last Glacial Maximum to be defined. This, in turn, enabled estimates of the past magnitude of ice flow through this glacial system to be calculated.
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