Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL072560 |
Potential of satellite-based land emissivity estimates for the detection of high-latitude freeze and thaw states | |
Prakash, Satya1; Norouzi, Hamid1; Azarderakhsh, Marzi2; Blake, Reginald1; Khanbilvardi, Reza3 | |
2017-03-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Reliable detection of freeze and thaw (FT) states is crucial for the terrestrial water cycle, biogeochemical transitions, carbon and methane feedback to the atmosphere, and for the surface energy budget and its associated impacts on the global climate system. This paper is novel in that for the first time a unique approach to examine the potential of passive microwave remotely sensed land emissivity and its added values of being free from the atmospheric effects and being sensitive to surface characteristics is being applied to the detection of FT states for latitudes north of 35 degrees N. Since accurate characterizations of the soil state are highly dependent on land cover types, a novel threshold-based approach specific to different land cover types is proposed for daily FT detection from the use of 3 years (August 2012 to July 2015) of the Advanced Microwave Scanning Radiometer-2 land emissivity estimates. Ground-based soil temperature observations are used as reference to develop threshold values for FT states. Preliminary evaluation of the proposed approach with independent ground observations over Alaska for the year 2015 shows that the use of land emissivity estimates for high-latitude FT detection is promising. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398183700033 |
WOS关键词 | SURFACE EMISSIVITIES ; MICROWAVE ; PARAMETERS ; SNOW |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/25805 |
专题 | 气候变化 |
作者单位 | 1.CUNY City Coll, Brooklyn, NY 11201 USA; 2.Fairleigh Dickinson Univ, Sch Comp Sci & Engn, Teaneck, NJ USA; 3.CUNY City Coll, NOAA, Cooperat Remote Sensing Sci & Technol Ctr, New York, NY 10031 USA |
推荐引用方式 GB/T 7714 | Prakash, Satya,Norouzi, Hamid,Azarderakhsh, Marzi,et al. Potential of satellite-based land emissivity estimates for the detection of high-latitude freeze and thaw states[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(5). |
APA | Prakash, Satya,Norouzi, Hamid,Azarderakhsh, Marzi,Blake, Reginald,&Khanbilvardi, Reza.(2017).Potential of satellite-based land emissivity estimates for the detection of high-latitude freeze and thaw states.GEOPHYSICAL RESEARCH LETTERS,44(5). |
MLA | Prakash, Satya,et al."Potential of satellite-based land emissivity estimates for the detection of high-latitude freeze and thaw states".GEOPHYSICAL RESEARCH LETTERS 44.5(2017). |
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