Abstract
Across the Arctic changes in active layer, melting of glaciers and ground ice, thawing of permafrost and sequestration changes of carbon storage are driven in part by variations of land surface heat absorption, conduction and re-radiation relative to solar irradiance. We investigate Arctic land-surface temperature changes and regional variations derived by the MODIS sensors on NASA Aqua and Terra from March 2000 through July 2012. Over this decadal period we detect increase in the number of days with daytime land-surface temperature above 0℃. There are indications of increasing trends of land-surface temperature change. Regional variations of the changes in land-surface temperature likely arise due to surface material types and topography relative to the daytime variation of solar irradiance.
Highlights
The ongoing NASA Earth Observation System (EOS) is conceived by the successes of NASA and international Earth observing satellite missions up to the early 1990’s [1,2]
We investigate Arctic land-surface temperature changes and regional variations derived by the Moderate Resolution Imaging Spectroradiometer (MODIS) sensors on NASA Aqua and Terra from March 2000 through July 2012
In this research we investigate land-surface temperature and its changes across the Arctic derived by the Moderate Resolution Imaging Spectroradiometer (MODIS) on the NASA Terra and Aqua satellites from year 2000 through 2012 (Figure 1)
Summary
The ongoing NASA Earth Observation System (EOS) is conceived by the successes of NASA and international Earth observing satellite missions up to the early 1990’s [1,2]. Land-surface temperature is a key parameter of landsurface physics and processes at local and up to global scales [2]. It is the consequence of direct and indirect energy fluxes of the sun and atmosphere with the ground. It is a vital parameter for the changes in biogeochemical cycles, ecosystems, energy-heat-mass budgets and cycles, meteorology and climate across the spectrum of temporal scales from the diurnal to multidecadal and longer. These include the snow fields and glacier ice of the Greenland Icesheet and ice caps of the Canadian high north, tundra landscapes, summertime wetlands— peatlands, thaw lake districts, the northern continuous permafrost zone and its summertime thaw-layer (the active layer), lowland-upland ecosystems and river basins feeding freshwater to the Arctic Ocean
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
