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| Evapotranspiration Variations in the Mississippi River Basin Estimated From GPS Observations | |
| Zhang, Tengyu1,2; Jin, Shuanggen3,4 | |
| 2016-08-01 | |
| Source Publication | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
 |
| ISSN | 0196-2892 |
| Volume | 54Issue:8Pages:4694-4701 |
| Abstract | Evapotranspiration (ET) is one of the key variables in water cycle and ecological systems, whereas it is difficult to quantify ET variations from traditional observations in large river basins, e.g., Mississippi River basin (MRB). In this paper, a new geodetic tool, i.e., Global Positioning System (GPS), is used for the first time to estimate monthly ET variations at a regional scale. Based on the water balance equation, the monthly ET variation is estimated using the GPS-derived terrestrial water storage (TWS) from January 2006 to July 2015 in MRB. The annual amplitude of GPS-inferred TWS in MRB agrees well with the results of Gravity Recovery and Climate Experiment. The ET variations from the water balance approach agree well with the land surface modeling and remote sensing data. The correlation of GPS-inferred ET with other ET products is higher than 0.8, which indicates that the GPS-estimated ET well characterizes the ET variations in MRB. The annual amplitude of GPS-inferred ET variations is 47.9 mm/month, which is close to that from land surface modeling of North American Land Data Assimilation System, and a little larger than MODerate Resolution Imaging Spectroradiometer. The mean monthly ET reaches its maximum in June-July and its minimum in December, which is consistent with the periodic pattern of radiative energy in a year. Furthermore, the ET variations are mainly dominated by the temperature change in MRB. |
| Keyword | Evapotranspiration (Et) Global Positioning System (Gps) Gravity Recovery And Climate Experiment (Grace) Mississippi River Basin (Mrb) Terrestrial Water Storage (Tws) |
| WOS Headings | Science & Technology ; Physical Sciences ; Technology |
| DOI | 10.1109/TGRS.2016.2549364 |
| WOS Keyword | CONTERMINOUS UNITED-STATES ; REMOTELY-SENSED DATA ; WATER-BALANCE ; CLIMATE EXPERIMENT ; EARTHS OBLATENESS ; GRAVITY RECOVERY ; GRACE ; PRECIPITATION ; MODEL ; TEMPERATURE |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS Subject | Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology |
| WOS ID | WOS:000381434600027 |
| Publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://libir.pmo.ac.cn/handle/332002/23630 |
| Collection | 中国科学院紫金山天文台 |
| Corresponding Author | Jin, Shuanggen |
| Affiliation | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Planetary Sci, Shanghai 200030, Peoples R China 4.Bulent Ecevit Univ, Dept Geomat Engn, TR-67100 Zonguldak, Turkey |
| Recommended Citation GB/T 7714 | Zhang, Tengyu,Jin, Shuanggen. Evapotranspiration Variations in the Mississippi River Basin Estimated From GPS Observations[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2016,54(8):4694-4701. |
| APA | Zhang, Tengyu,&Jin, Shuanggen.(2016).Evapotranspiration Variations in the Mississippi River Basin Estimated From GPS Observations.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,54(8),4694-4701. |
| MLA | Zhang, Tengyu,et al."Evapotranspiration Variations in the Mississippi River Basin Estimated From GPS Observations".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 54.8(2016):4694-4701. |
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