Concept information
Preferred term
ARCDIV.NET
Definition
- Short Title: ARCDIV NET Proposal URL: http://classic.ipy.org/development/eoi/proposal-details.php?id=72 The Network for Arctic Climate and Biological Diversity Studies (ARCDIV) is a multidisciplinary research cluster under the International Polar Year (IPY 2007-2008), seeking to explore the diversity of climates and ecosystems at landscape scale within the Arctic region, by integrating historical, existing and new intense measurements of key physical and biological variables and processes at multiple Arctic observational sites. Rationale: The recently published Arctic Climate Impact Assessment (ACIA) presents detailed information of the significant contemporary changes in regional variability and trends of climate and ecosystems in the Arctic, with important coupling and feedback mechanisms to the global climate system. The ARCDIV cluster will establish several reference areas in the Arctic, equipped with permanent long-term and new intense campaign based measurements of physical and biological parameters on various temporal and spatial scales, with the aim to resolve the variability of climate and biological diversity on landscape and regional scales around the Arctic. These new observations will be held against data from long-term climate monitoring and experimentally manipulated plots. This is a new frontier for climate change and ecosystem interaction studies aiming at understanding small-scale physical and biological variability in time and space and their links to the large-scale regional climate variability and trend patterns with relation to global climate change. Scientific Content: Multidisciplinary research groups will set up coordinated and intense atmospheric/terrestrial measurement systems and field observations at the different reference sites, integrating the following scientific themes and activities on the basis of variable geometry: · Physical observations: Meteorological synoptic and automatic weather stations, micrometeorological measurements, radiosondes, UAV and sodar profiling of the ABL, atmospheric radiation including UV, surface radiation budget, regional spectral albedo on land and sea ice, surface energy balance, snow/ice distribution, hydrology, geochemistry, wetland methane fluxes, arrays of temperature loggers and freeze-thawing events. · Biological observations: Vegetation monitoring and mapping, cryobiology, alpha/beta and genetic diversity, nutrient and carbon cycling/sequestration, microbial communities in soil and freshwater, trophic interactions and structure, predator-prey systems, herbivory, stress parameters, structure and function of ecosystems and colonization. · Models/Integration: Physical, atmospheric circulation, landscape and radiation transfer models will be used together with the intense physical observations to describe the local abiotic environmental variability and its relation to the regional atmospheric circulation. GIS-systems will assist sampling and integrated analysis of the physical and biological parameters. Remote sensing will be used for extraction of physical and biological parameters at the reference sites. Multi-scale statistical methods will be used for integrated analysis, including the possible projection of future changes. -Cluster components: This multidisciplinary initiative cluster a coherent set of EOI's for the purpose of coordinating the many complementary research groups of different disciplines and nationalities that are active at various sites/stations in the Arctic, studying different aspects of climate and biological diversity. The added value for all partners is to get access to data relevant for own studies and the total integration of physical and biological knowledge in order to address the complex interaction mechanisms between abiotic and biotic parameters involving small and regional scales. (en)
Broader concept
- A - C (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/fa3ac5f0-614d-4a08-8eca-f1ce3cf3090c
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