Regionalization and Analysis of Precipitation Variations in Inner Mongolia
Precipitation data from 104 meteorological stations in Inner Mongolia from 1960 to 2018 were analyzed to examine the regionalization and characteristics of precipitation variations. Using rotated empirical orthogonal function (REOF) analysis and K-means clustering, Inner Mongolia was divided into si...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-02-01
|
| Series: | Atmosphere |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4433/16/2/216 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850080811377754112 |
|---|---|
| author | Wei Wang Jiao Guo |
| author_facet | Wei Wang Jiao Guo |
| author_sort | Wei Wang |
| collection | DOAJ |
| description | Precipitation data from 104 meteorological stations in Inner Mongolia from 1960 to 2018 were analyzed to examine the regionalization and characteristics of precipitation variations. Using rotated empirical orthogonal function (REOF) analysis and K-means clustering, Inner Mongolia was divided into six precipitation subregions: the northeastern Hulunbuir area (subregion I); most of Hinggan League, northern Xilin Gol League, and northwestern Tongliao City (subregion II); most of Tongliao City and Chifeng City and east–central and southern Xilin Gol League (subregion III); southern Xilin Gol League, north–central Ulan Chab City, northern Hohhot City, most of Baotou City and north–central Bayannur City (subregion IV); Ordos City, southern Bayannur, and southeastern Alxa League (subregion V); and west–central Alxa League and parts of western Bayannur City (subregion VI). Precipitation showed a spatial gradient with higher annual averages in the east (400.85 mm in subregion I) and lower averages in the west (90.65 mm in subregion VI). From 1960 to 2018, precipitation exhibited an overall increasing trend consistent across the subregions. However, most regions showed decreasing trends from 1990 to 2010. The rate of precipitation change varied significantly across the subregions, reflecting distinct spatial dynamics. |
| format | Article |
| id | doaj-art-a7fe1c84cf3d49cc8fe7e08b57d57a4c |
| institution | DOAJ |
| issn | 2073-4433 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj-art-a7fe1c84cf3d49cc8fe7e08b57d57a4c2025-08-20T02:44:52ZengMDPI AGAtmosphere2073-44332025-02-0116221610.3390/atmos16020216Regionalization and Analysis of Precipitation Variations in Inner MongoliaWei Wang0Jiao Guo1Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaInstitute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, ChinaPrecipitation data from 104 meteorological stations in Inner Mongolia from 1960 to 2018 were analyzed to examine the regionalization and characteristics of precipitation variations. Using rotated empirical orthogonal function (REOF) analysis and K-means clustering, Inner Mongolia was divided into six precipitation subregions: the northeastern Hulunbuir area (subregion I); most of Hinggan League, northern Xilin Gol League, and northwestern Tongliao City (subregion II); most of Tongliao City and Chifeng City and east–central and southern Xilin Gol League (subregion III); southern Xilin Gol League, north–central Ulan Chab City, northern Hohhot City, most of Baotou City and north–central Bayannur City (subregion IV); Ordos City, southern Bayannur, and southeastern Alxa League (subregion V); and west–central Alxa League and parts of western Bayannur City (subregion VI). Precipitation showed a spatial gradient with higher annual averages in the east (400.85 mm in subregion I) and lower averages in the west (90.65 mm in subregion VI). From 1960 to 2018, precipitation exhibited an overall increasing trend consistent across the subregions. However, most regions showed decreasing trends from 1990 to 2010. The rate of precipitation change varied significantly across the subregions, reflecting distinct spatial dynamics.https://www.mdpi.com/2073-4433/16/2/216rotated empirical orthogonal function (REOF)K-meansprecipitationregionalizationInner Mongolia |
| spellingShingle | Wei Wang Jiao Guo Regionalization and Analysis of Precipitation Variations in Inner Mongolia Atmosphere rotated empirical orthogonal function (REOF) K-means precipitation regionalization Inner Mongolia |
| title | Regionalization and Analysis of Precipitation Variations in Inner Mongolia |
| title_full | Regionalization and Analysis of Precipitation Variations in Inner Mongolia |
| title_fullStr | Regionalization and Analysis of Precipitation Variations in Inner Mongolia |
| title_full_unstemmed | Regionalization and Analysis of Precipitation Variations in Inner Mongolia |
| title_short | Regionalization and Analysis of Precipitation Variations in Inner Mongolia |
| title_sort | regionalization and analysis of precipitation variations in inner mongolia |
| topic | rotated empirical orthogonal function (REOF) K-means precipitation regionalization Inner Mongolia |
| url | https://www.mdpi.com/2073-4433/16/2/216 |
| work_keys_str_mv | AT weiwang regionalizationandanalysisofprecipitationvariationsininnermongolia AT jiaoguo regionalizationandanalysisofprecipitationvariationsininnermongolia |