Concept information
Preferred term
COMPASS
Definition
- Short Title: COMPASS Proposal URL: http://classic.ipy.org/development/eoi/proposal-details.php?id=267 COMPASS provides an integrated and interdisciplinary approach to understanding the input of Antarctica into global climate formation during the observation period of IPY 2007-2008. COMPASS is realised through following four themes: 1. Records of Antarctic climate variability and change 2. Climate processes at the Antarctic central and coastal zones 3. Southern Hemisphere teleconnections and land - air - sea - ice interactions 4. Antarctica and the global climate system The COMPASS Project cluster has the goal of creating a definitive, high quality data set of IPY Antarctic standard meteorological observations for use in climate research and applied studies. The project results will be freely available to the Antarctic community. The primary source of COMPASS Project data will be the netwoirk of Antarctic manned research stations and automatic weather stations (AWSs) being actively operating during IPY period observational period. This proposal describes IPY activities grouped in the Antarctic Meteorology cluster of EOIs that contribute to the goals of COMPASS. Objectives: 1. To obtain a synoptic circumpolar snapshot of the atmospheric environment of the Southern Hemisphere (collaboration with other IPY activities will extend the snapshot to include solar radiation, trace gases, permafrost and geomagnetism). 2. To enhance understanding of the role of the Southern Hemisphere atmospheric processes in present climate, including teleconnections between polar and lower latitudes, connections between synoptic, mesoscale and large-scale circulation systems, solar radiation cloudy feedbacks, greenhouse gases emission, land - air- - sea - ice interactions. Outcomes/Deliverables: 1. Improved description of atmosphere features for a better understanding of southern polar climate processes. 2. Proof of concept of a viable, cost-effective, sustained observing system for the southern polar regions (including land, atmosphere, ocean, and cryosphere). 3. A baseline for the assessment of future climate change. Major field programs: 1. A circumpolar data set of full multi-disciplinary measurement program with extending from the Antarctic continent northward to Sub-Antarctic Islands, including current surface (00, 06, 12, 18 GMT) and upper-air observations (00, 12, GMT) (totally about 120 synoptic parameters). 2. An enhanced circumpolar dataset of solar radiation measurements, including UV-B radiation variability based on surface observations, satellite data and model estimations. 3. An enhanced circumpolar dataset of cloud cover parameters variability, including number of cloudy levels, top and bottom boundary height of clouds, water content of clouds and so on (totally about 40 parameters) based on surface observations, upper-air data diagnosis, satellite information, lidar measurements (EOI 757). 4. An enhanced circumpolar dataset of precipitation and snow cover parameters variability, including precipitation correction procedure. 5. Greenhouse gases dataset formation, based on surface and satellite data. 6. Dataset on atmospheric aerosol composition and distribution. 7. Automatic Weather Stations information and data quality control. 8. Atmospheric boundary layer turbulent flux measurements (EOI 805). 9. Synoptic map collection and macro-scale circulation form classification. The observations will be integrated closely with modelling studies using a variety of approaches (global and regional atmospheric models, photo-chemical models, coupled climate models (EOI 582)). (en)
Broader concept
- A - C (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/0e7404f6-1094-47e8-a967-a1e0247e024b
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