Article(id=1222940981431885995, tenantId=1146029695717560320, journalId=1205116964453384197, issueId=1222940980886626474, articleNumber=null, orderNo=null, doi=10.20040/j.cnki.1000-7709.2023.20230201, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1676390400000, receivedDateStr=2023-02-15, revisedDate=1678809600000, revisedDateStr=2023-03-15, acceptedDate=null, acceptedDateStr=null, onlineDate=1769501451118, onlineDateStr=2026-01-27, pubDate=1700841600000, pubDateStr=2023-11-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1769501451118, onlineIssueDateStr=2026-01-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1769501451118, creator=13041195026, updateTime=1769501451118, updator=13041195026, issue=Issue{id=1222940980886626474, tenantId=1146029695717560320, journalId=1205116964453384197, year='2023', volume='41', issue='11', pageStart='1', pageEnd='226', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1769501450987, creator=13041195026, updateTime=1769501450987, updator=13041195026, preIssue=null, nextIssue=null, ext=null, issueFiles=null}, startPage=39, endPage=42, ext={EN=ArticleExt(id=1222940981666767021, articleId=1222940981431885995, tenantId=1146029695717560320, journalId=1205116964453384197, language=EN, title=Downscaling of Groundwater Storage Change in Haihe River Basin Based on GWR Model, columnId=1222925279849341011, journalTitle=Water Resources and Power, columnName=HYDROLOGY, WATER RESOURCES AND ENVIRONMENT, runingTitle=null, highlight=null, articleAbstract=

Using GRACE gravity satellite data combined with GLDAS data inversion can obtain the change of groundwater reserves, which can monitor the change of groundwater reserves in the study area on a large scale, but the spatial resolution of the obtained data is only 0.25°, and it is difficult to be applied in the small scale. Based on the spatial relationship between GRACE terrestrial water storage and GLDAS shallow surface water storage and precipitation, NDVI, a downscaling method of groundwater storage change based on geographically weighted regression model (GWR model) was proposed, and the spatial resolution of groundwater storage was downscaled to 1 km. The results show that the GWR model downscaling method is successfully applied to the Haihe River Basin. The correlation coefficients between the groundwater storage data after downscaling and the measured groundwater level data at 46 verification points are all greater than 0.6, and the simulation results are reasonable and reliable. Furthermore, the temporal and spatial variation characteristics of groundwater storage in Haihe River Basin and Beijing Plain were analyzed by using the downscaling results. The results is highly consistent with the existing data, indicating that the downscaling method based on GWR model can effectively improve the spatial resolution of groundwater storage change data.

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利用GRACE重力卫星数据联合GLDAS数据反演可得到地下水储量变化,能够在大尺度范围监测研究区域内的地下水储量变化,但得到的数据空间分辨率仅有0.25°,在小尺度范围内难以应用。基于GRACE陆地水储量及GLDAS浅层地表水储量与降水、NDVI之间的空间关系,提出一种基于地理加权回归模型(GWR模型)的地下水储量变化的降尺度方法,将地下水储量空间分辨率降尺度到1 km。结果表明,GWR模型降尺度方法成功应用于海河流域地区,降尺度后的地下水储量数据变化与46个验证点实测地下水位数据的相关系数均大于0.6,模拟结果合理可靠。进而利用降尺度结果分析了海河流域与北京平原的地下水储量的时空变化特征,结果与现有数据高度吻合,表明基于GWR模型的降尺度方法能有效提高地下水储量变化数据的空间分辨率。

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段光耀(1986-),男,博士、高级工程师、硕导,研究方向为遥感与地理信息应用、水资源系统与可持续利用,E-mail:
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黄上富(1997-),男,硕士研究生,研究方向为水文水资源,E-mail:

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黄上富(1997-),男,硕士研究生,研究方向为水文水资源,E-mail:

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基于GWR模型的海河流域地下水储量降尺度研究
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黄上富 1, 2a , 段光耀 1 , 和继军 2b , 吴霞 1 , 于帅 1
水电能源科学 | 水文水资源与环境 2023,41(11): 39-42
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水电能源科学 | 水文水资源与环境 2023, 41(11): 39-42
基于GWR模型的海河流域地下水储量降尺度研究
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黄上富1, 2a , 段光耀1 , 和继军2b, 吴霞1, 于帅1
作者信息
  • 1.北京市水科学技术研究院,北京 100048
  • 2.a.首都师范大学资源环境与旅游学院,北京 100048
  • 2.b.首都师范大学初等教育学院,北京 100048
  • 黄上富(1997-),男,硕士研究生,研究方向为水文水资源,E-mail:

通讯作者:

段光耀(1986-),男,博士、高级工程师、硕导,研究方向为遥感与地理信息应用、水资源系统与可持续利用,E-mail:
Downscaling of Groundwater Storage Change in Haihe River Basin Based on GWR Model
Shang-fu HUANG1, 2a , Guang-yao DUAN1 , Ji-jun HE2b, Xia WU1, Shuai YU1
Affiliations
  • 1.Beijing Water Science and Technology Institute, Beijing 100048, China
  • 2a.College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China
  • 2b.College of Elementary Education, Capital Normal University, Beijing 100048, China
出版时间: 2023-11-25 doi: 10.20040/j.cnki.1000-7709.2023.20230201
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利用GRACE重力卫星数据联合GLDAS数据反演可得到地下水储量变化,能够在大尺度范围监测研究区域内的地下水储量变化,但得到的数据空间分辨率仅有0.25°,在小尺度范围内难以应用。基于GRACE陆地水储量及GLDAS浅层地表水储量与降水、NDVI之间的空间关系,提出一种基于地理加权回归模型(GWR模型)的地下水储量变化的降尺度方法,将地下水储量空间分辨率降尺度到1 km。结果表明,GWR模型降尺度方法成功应用于海河流域地区,降尺度后的地下水储量数据变化与46个验证点实测地下水位数据的相关系数均大于0.6,模拟结果合理可靠。进而利用降尺度结果分析了海河流域与北京平原的地下水储量的时空变化特征,结果与现有数据高度吻合,表明基于GWR模型的降尺度方法能有效提高地下水储量变化数据的空间分辨率。

GRACE  /  GLDAS  /  地下水储量变化  /  GWR降尺度  /  水资源监测

Using GRACE gravity satellite data combined with GLDAS data inversion can obtain the change of groundwater reserves, which can monitor the change of groundwater reserves in the study area on a large scale, but the spatial resolution of the obtained data is only 0.25°, and it is difficult to be applied in the small scale. Based on the spatial relationship between GRACE terrestrial water storage and GLDAS shallow surface water storage and precipitation, NDVI, a downscaling method of groundwater storage change based on geographically weighted regression model (GWR model) was proposed, and the spatial resolution of groundwater storage was downscaled to 1 km. The results show that the GWR model downscaling method is successfully applied to the Haihe River Basin. The correlation coefficients between the groundwater storage data after downscaling and the measured groundwater level data at 46 verification points are all greater than 0.6, and the simulation results are reasonable and reliable. Furthermore, the temporal and spatial variation characteristics of groundwater storage in Haihe River Basin and Beijing Plain were analyzed by using the downscaling results. The results is highly consistent with the existing data, indicating that the downscaling method based on GWR model can effectively improve the spatial resolution of groundwater storage change data.

GRACE  /  GLDAS  /  groundwater storage changes  /  GWR downscaling  /  water resources monitoring
黄上富, 段光耀, 和继军, 吴霞, 于帅. 基于GWR模型的海河流域地下水储量降尺度研究. 水电能源科学, 2023 , 41 (11) : 39 -42 . DOI: 10.20040/j.cnki.1000-7709.2023.20230201
Shang-fu HUANG, Guang-yao DUAN, Ji-jun HE, Xia WU, Shuai YU. Downscaling of Groundwater Storage Change in Haihe River Basin Based on GWR Model[J]. Water Resources and Power, 2023 , 41 (11) : 39 -42 . DOI: 10.20040/j.cnki.1000-7709.2023.20230201
  • 北京卓越青年科学家项目(BJJWZYJH01201910028032)
2023年第41卷第11期
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文章信息
doi: 10.20040/j.cnki.1000-7709.2023.20230201
  • 接收时间:2023-02-15
  • 首发时间:2026-01-27
  • 出版时间:2023-11-25
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  • 收稿日期:2023-02-15
  • 修回日期:2023-03-15
基金
北京卓越青年科学家项目(BJJWZYJH01201910028032)
作者信息
    1.北京市水科学技术研究院,北京 100048
    2.a.首都师范大学资源环境与旅游学院,北京 100048
    2.b.首都师范大学初等教育学院,北京 100048

通讯作者:

段光耀(1986-),男,博士、高级工程师、硕导,研究方向为遥感与地理信息应用、水资源系统与可持续利用,E-mail:
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2种不同金属材料的力学参数

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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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