Resolving mass flux at high spatial and temporal resolution using GRACE intersatellite measurements
The GRACE mission is designed to monitor mass flux on the Earth's surface at one month and high spatial resolution through the estimation of monthly gravity fields. Although this approach has been largely successful, information at submonthly time scales can be lost or even aliased through the...
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| Veröffentlicht in: | Geophysical research letters 2005-02, Vol.32 (4), p.L04310.1-n/a |
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| container_title | Geophysical research letters |
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| creator | Rowlands, D. D. Luthcke, S. B. Klosko, S. M. Lemoine, F. G. R. Chinn, D. S. McCarthy, J. J. Cox, C. M. Anderson, O. B. |
| description | The GRACE mission is designed to monitor mass flux on the Earth's surface at one month and high spatial resolution through the estimation of monthly gravity fields. Although this approach has been largely successful, information at submonthly time scales can be lost or even aliased through the estimation of static monthly parameters. Through an analysis of the GRACE data residuals, we show that the fundamental temporal and spatial resolution of the GRACE data is 10 days and 400 km. We present an approach similar in concept to altimetric methods that recovers submonthly mass flux at a high spatial resolution. Using 4° × 4° blocks at 10‐day intervals, we estimate the mass of surplus or deficit water over a 52° × 60° grid centered on the Amazon basin for July 2003. We demonstrate that the recovered signals are coherent and correlate well with the expected hydrological signal. |
| doi_str_mv | 10.1029/2004GL021908 |
| format | Article |
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Using 4° × 4° blocks at 10‐day intervals, we estimate the mass of surplus or deficit water over a 52° × 60° grid centered on the Amazon basin for July 2003. 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We demonstrate that the recovered signals are coherent and correlate well with the expected hydrological signal.</description><subject>Amazon Basin</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Flux</subject><subject>Geophysics</subject><subject>GRACE (experiment)</subject><subject>Hydrology</subject><subject>Monitors</subject><subject>River basins</subject><subject>Spatial resolution</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNp9kE1v1DAQhiNEJZaWGz_AFyQOBMZ2HMfHalWyoIhKqwJHa-I4rSEfi8eB9t-T1VbAidPMSM_zavRm2UsObzkI804AFHUDghuonmQbbooirwD002wDYNZd6PJZ9pzoGwBIkHyTub2nefgZpls2IhHrh-WeYWJ34faO0QFTwIHh1LHkx8Mc1yMehSWFeWILHb16f7m9YmFKPhImPwwheTZ6pCX60U-JLrKzHgfyLx7nefb5_dXNdpc31_WH7WWTo-Kc5wVvETy0ptSm0lppVwmjNHqHZdkp1Uleas17sTIonRMooPOqla3poGu1PM9en3IPcf6xeEp2DOTWh3Dy80KWKwnGFLqqVvTNCXVxJoq-t4cYRowPloM9dmn_7XLFXz0mIzkc-oiTC_TXKUulNKiVEyfuVxj8w38zbb1vuJGcr1J-kgIlf_9HwvjdllpqZb9-qu2u2X6UX2ppd_I3vG2R_Q</recordid><startdate>200502</startdate><enddate>200502</enddate><creator>Rowlands, D. 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B.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Resolving mass flux at high spatial and temporal resolution using GRACE intersatellite measurements</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2005-02</date><risdate>2005</risdate><volume>32</volume><issue>4</issue><spage>L04310.1</spage><epage>n/a</epage><pages>L04310.1-n/a</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>The GRACE mission is designed to monitor mass flux on the Earth's surface at one month and high spatial resolution through the estimation of monthly gravity fields. Although this approach has been largely successful, information at submonthly time scales can be lost or even aliased through the estimation of static monthly parameters. Through an analysis of the GRACE data residuals, we show that the fundamental temporal and spatial resolution of the GRACE data is 10 days and 400 km. 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| source | Wiley Online Library Free Content; Access via Wiley Online Library; Wiley-Blackwell AGU Digital Library; EZB-FREE-00999 freely available EZB journals |
| subjects | Amazon Basin Earth sciences Earth, ocean, space Exact sciences and technology Flux Geophysics GRACE (experiment) Hydrology Monitors River basins Spatial resolution |
| title | Resolving mass flux at high spatial and temporal resolution using GRACE intersatellite measurements |
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