Trends in Satellite Earth Observation for Permafrost Related Analyses—A Review
نویسندگان
چکیده
Climate change and associated Arctic amplification cause a degradation of permafrost which in turn has major implications for the environment. The potential turnover frozen ground from carbon sink to source, eroding coastlines, landslides, amplified surface deformation endangerment human infrastructure are some consequences connected with thawing permafrost. Satellite remote sensing is hereby powerful tool identify monitor these features processes on spatially explicit, cheap, operational, long-term basis up circum-Arctic scale. By filtering after selection relevant keywords, total 325 articles 30 international journals published during last two decades were analyzed based study location, spatio-temporal resolution applied data, platform, sensor combination studied environmental focus comprehensive overview past achievements, current efforts, together future challenges opportunities. temporal development publication frequency, utilized platforms/sensors addressed topic thereby highlighted. number publications more than doubled since 2015. Distinct geographical hot spots revealed, while at same time large portions continuous zone still only sparsely covered by satellite investigations. Moreover, studies related greenhouse gas emissions context appear heavily underrepresented. New tools (e.g., Google Earth Engine (GEE)), methodologies deep learning or data fusion etc.) Methane Remote Sensing LiDAR Mission (Merlin) Sentinel-fleet) will enable further investigate distribution permafrost, its thermal state environment such as thermokarst emission rates increasingly larger spatial scales.
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2021
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs13061217