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Water | Free Full-Text | Multiwater Index Synergistic Monitoring of Typical Wetland Water Bodies in the Arid Regions of West-Central Ningxia over 30 Years

The Shapotou National Nature Reserve in the Ningxia Hui Autonomous Region is a typical arid region in China. There is an exceptionally serious problem of surface water resource conservation, and dynamic monitoring of surface water with the help of water indices can help to elucidate its change patterns and impact mechanisms. Here, we analysed the characteristics of interannual variation in surface water area in the study area from 1992–2021. The correlation coefficients of the surface water area in the previous year and the contemporaneous water bodies of the Yellow River with the total surface water area (TSWA) were calculated. The results show the following: ① In terms of the classification accuracy of the two methods, water indices and support vector machine classification, water indices are more suitable for water body extraction in the study area. In particular, the three water indices, NDWI, MNDWI and AWEIsh, were more effective, with average overall accuracie ....

Yellow River , China General , Yangtze River , Chang Liushui , United States , Xiaohu Lakes , Shapotou National Nature , United States Geological Survey , Sha Botou National Nature Reserve Of Ningxia , Ningxia Zhongwei Shapotou National Nature , Engineering Of The Chinese Academy Sciences , Ningxia Zhongwei Shapotou National Nature Reserve Administration , Institute Of Cold , Enhanced Thematic Mapper Plus , Operable Land Imager , Operational Land Imager , Huaihe River , Lake Urmia , Google Earth , Shapotou National Nature Reserve , Ningxia Hui Autonomous Region , Tengger Desert , East Asian , Arid Zone Environment , Chinese Academy , Zhongwei Shapotou National Nature Reserve Phase ,

Looking Back: EROS Marks Major Milestones for 2020


Looking Back: EROS Marks Major Milestones for 2020
Land Change Monitoring, Assessment, and Projection
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Release Date:
December 28, 2020
The year of 2020 will be remembered largely for the global coronavirus pandemic, and with good reason: The impact was worldwide, sustained and continues into the new year.
LCMAP Annual Land Cover Change (LCACHNG) product for an area over Portland, Oregon for product year 2005. Visit the LCMAP Collection 1 Science Products webpage for more information.
The year of 2020 will be remembered largely for the global coronavirus pandemic, and with good reason: The impact was worldwide, sustained and continues into the new year.
Despite the challenges presented by the virus and the remote work conditions under which many in the U.S. Geological Survey labored throughout 2020, the USGS Earth Resources Observation and Science (EROS) Center marked a series of historic mileston ....

United States , Governor Association , International Charter , Importance Of International Partnerships , Boundaries In Service Of Science , European Space Agency , Center News , National Land Cover Database , Us Geological , Us Forest Service Checked The Work , Resources Observation , Change Monitoring , Conterminous United States , Landsat Collection , Landsat Archive , Scientists Look , Potential Use , Operational Burn Mapping , South Dakota , Custer State Park , New Land Cover Maps , North American Land Change Monitoring System , Offer Aid , Invasive Grasses , Western Governor , Service Checked ,