https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf draft 2025-07-25 https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/projects/a3d66cf3-f2aa-42e3-b811-863f3c28b898 ARCSIX Date=2025-03-07 User Id=tstevens Entity=BroaderRelation Operation=INSERT User Note=Insert Concept System Note=add broader relation New Value=ARCSIX [a3d66cf3-f2aa-42e3-b811-863f3c28b898,2103179] - A - C [0c89f3f4-7ab1-43ce-89ee-795d35f0e30a,2095823] Date=2025-03-07 User Id=tstevens Entity=AltLabel Operation=INSERT System Note=insert AltLabel New Value=id: null category: primary text: Arctic Radiation-Cloud-Aerosol-Surface Interaction Experiment language code: en Date=2025-03-07 User Id=tstevens Entity=Definition Operation=INSERT System Note=insert Definition New Value=id: null text: The overarching goal of ARCSIX is to quantify the contributions of surface properties, clouds, aerosol particles, and precipitation to the Arctic summer surface radiation budget and sea ice melt during the early melt season (May through mid-July). It encompasses three main science questions and one objective: Science Question 1 (Radiation): What is the impact of the predominant summer Arctic cloud types on the radiative surface energy budget? Science Question 2 (Cloud Life Cycle): What processes control the evolution and maintenance of the predominant cloud regimes in the summertime Arctic? Science Question 3 (Sea Ice): How do the two-way interactions between surface properties and atmospheric forcings affect the sea ice evolution? Remote Sensing and Modeling Objective: Enhance our long-term space-based monitoring and predictive capabilities of Arctic sea ice, cloud, and aerosols by validating and improving remote sensing algorithms and model parameterizations in the Arctic. language code: en The Arctic Research of the Composition of the Tropsphere from Aircraft and Satellites (ARCTAS) field campaign helped scientists identify how air pollution contributes to climate changes in the Arctic. The campaign had two, three-week deployments conducted in April and July 2008 out of Fairbanks, Alaska. Three NASA research aircraft – the DC-8, P-3, and B-200 – served as airborne laboratories carrying instruments to measure air pollution gases and aerosols and solar radiation. Of particular interest was the formation of the springtime “arctic haze,” which is fueled by sunlight causing chemical reactions of pollutants accumulated over the winter from long-range transport from lower latitudes. 2026-02-05T13:31:55.659Z