Evaluating Hydro-Meteorological Fluxes Using GRACE-Derived Water Storage Changes

Annette Eicker, Laura Jensen, Viviana Wöhnke, Andreas Kvas, Torsten Mayer-Gürr, Henryk Dobslaw

Publikation: KonferenzbeitragPaperForschung

Abstract

Atmospheric and terrestrial water budgets, which represent important boundary conditions for both climate modeling and hydrological studies, are linked by evapotranspiration (E) and precipitation (P). These fields are provided by numerical weather prediction models and atmospheric reanalyses such as ERA5 and MERRA-2 and play an important role in the context of climate modeling for initialization and evaluation. Via the terrestrial water budget equation, water storage changes derived from products of the Gravity Recovery and Climate Experiment (GRACE) mission, combined with runoff (R) information can be used to assess atmospheric models.

Besides long-term and (sub-)seasonal time scales also higher temporal frequencies of only a few days are of interest as especially extreme events like floods mainly occur on short time scales. In this contribution we will investigate the agreement of GRACE data on different temporal scales with the P-E-R flux time series from recent atmospheric reanalyses (e.g. ERA5, MERRA-2). While the models exhibit large biases and fail to capture the long-term flux trends in P-E-R, modeled fluxes agree remarkably well with GRACE water storage changes on short time scales and significant correlations can be detected down to sub-monthly (daily) time scales.
Originalspracheenglisch
PublikationsstatusVeröffentlicht - 11 Jul 2019
Veranstaltung27th IUGG General Assembly - Montreal, Kanada
Dauer: 8 Jul 201918 Jul 2019

Konferenz

Konferenz27th IUGG General Assembly
LandKanada
OrtMontreal
Zeitraum8/07/1918/07/19

Fingerprint

GRACE
water storage
timescale
water budget
climate modeling
extreme event
evapotranspiration
boundary condition
time series
runoff
weather
prediction

Schlagwörter

    ASJC Scopus subject areas

    • !!Atmospheric Science

    Fields of Expertise

    • Sustainable Systems

    Dies zitieren

    Eicker, A., Jensen, L., Wöhnke, V., Kvas, A., Mayer-Gürr, T., & Dobslaw, H. (2019). Evaluating Hydro-Meteorological Fluxes Using GRACE-Derived Water Storage Changes. Beitrag in 27th IUGG General Assembly, Montreal, Kanada.

    Evaluating Hydro-Meteorological Fluxes Using GRACE-Derived Water Storage Changes. / Eicker, Annette; Jensen, Laura; Wöhnke, Viviana; Kvas, Andreas; Mayer-Gürr, Torsten; Dobslaw, Henryk.

    2019. Beitrag in 27th IUGG General Assembly, Montreal, Kanada.

    Publikation: KonferenzbeitragPaperForschung

    Eicker, A, Jensen, L, Wöhnke, V, Kvas, A, Mayer-Gürr, T & Dobslaw, H 2019, 'Evaluating Hydro-Meteorological Fluxes Using GRACE-Derived Water Storage Changes' Beitrag in, Montreal, Kanada, 8/07/19 - 18/07/19, .
    Eicker A, Jensen L, Wöhnke V, Kvas A, Mayer-Gürr T, Dobslaw H. Evaluating Hydro-Meteorological Fluxes Using GRACE-Derived Water Storage Changes. 2019. Beitrag in 27th IUGG General Assembly, Montreal, Kanada.
    Eicker, Annette ; Jensen, Laura ; Wöhnke, Viviana ; Kvas, Andreas ; Mayer-Gürr, Torsten ; Dobslaw, Henryk. / Evaluating Hydro-Meteorological Fluxes Using GRACE-Derived Water Storage Changes. Beitrag in 27th IUGG General Assembly, Montreal, Kanada.
    @conference{4315900f6e734d10be61c98a79ed8f03,
    title = "Evaluating Hydro-Meteorological Fluxes Using GRACE-Derived Water Storage Changes",
    abstract = "Atmospheric and terrestrial water budgets, which represent important boundary conditions for both climate modeling and hydrological studies, are linked by evapotranspiration (E) and precipitation (P). These fields are provided by numerical weather prediction models and atmospheric reanalyses such as ERA5 and MERRA-2 and play an important role in the context of climate modeling for initialization and evaluation. Via the terrestrial water budget equation, water storage changes derived from products of the Gravity Recovery and Climate Experiment (GRACE) mission, combined with runoff (R) information can be used to assess atmospheric models.Besides long-term and (sub-)seasonal time scales also higher temporal frequencies of only a few days are of interest as especially extreme events like floods mainly occur on short time scales. In this contribution we will investigate the agreement of GRACE data on different temporal scales with the P-E-R flux time series from recent atmospheric reanalyses (e.g. ERA5, MERRA-2). While the models exhibit large biases and fail to capture the long-term flux trends in P-E-R, modeled fluxes agree remarkably well with GRACE water storage changes on short time scales and significant correlations can be detected down to sub-monthly (daily) time scales.",
    keywords = "ECMWF, GRACE, Hydro-Meteorological Fluxes",
    author = "Annette Eicker and Laura Jensen and Viviana W{\"o}hnke and Andreas Kvas and Torsten Mayer-G{\"u}rr and Henryk Dobslaw",
    year = "2019",
    month = "7",
    day = "11",
    language = "English",
    note = "27th IUGG General Assembly ; Conference date: 08-07-2019 Through 18-07-2019",

    }

    TY - CONF

    T1 - Evaluating Hydro-Meteorological Fluxes Using GRACE-Derived Water Storage Changes

    AU - Eicker, Annette

    AU - Jensen, Laura

    AU - Wöhnke, Viviana

    AU - Kvas, Andreas

    AU - Mayer-Gürr, Torsten

    AU - Dobslaw, Henryk

    PY - 2019/7/11

    Y1 - 2019/7/11

    N2 - Atmospheric and terrestrial water budgets, which represent important boundary conditions for both climate modeling and hydrological studies, are linked by evapotranspiration (E) and precipitation (P). These fields are provided by numerical weather prediction models and atmospheric reanalyses such as ERA5 and MERRA-2 and play an important role in the context of climate modeling for initialization and evaluation. Via the terrestrial water budget equation, water storage changes derived from products of the Gravity Recovery and Climate Experiment (GRACE) mission, combined with runoff (R) information can be used to assess atmospheric models.Besides long-term and (sub-)seasonal time scales also higher temporal frequencies of only a few days are of interest as especially extreme events like floods mainly occur on short time scales. In this contribution we will investigate the agreement of GRACE data on different temporal scales with the P-E-R flux time series from recent atmospheric reanalyses (e.g. ERA5, MERRA-2). While the models exhibit large biases and fail to capture the long-term flux trends in P-E-R, modeled fluxes agree remarkably well with GRACE water storage changes on short time scales and significant correlations can be detected down to sub-monthly (daily) time scales.

    AB - Atmospheric and terrestrial water budgets, which represent important boundary conditions for both climate modeling and hydrological studies, are linked by evapotranspiration (E) and precipitation (P). These fields are provided by numerical weather prediction models and atmospheric reanalyses such as ERA5 and MERRA-2 and play an important role in the context of climate modeling for initialization and evaluation. Via the terrestrial water budget equation, water storage changes derived from products of the Gravity Recovery and Climate Experiment (GRACE) mission, combined with runoff (R) information can be used to assess atmospheric models.Besides long-term and (sub-)seasonal time scales also higher temporal frequencies of only a few days are of interest as especially extreme events like floods mainly occur on short time scales. In this contribution we will investigate the agreement of GRACE data on different temporal scales with the P-E-R flux time series from recent atmospheric reanalyses (e.g. ERA5, MERRA-2). While the models exhibit large biases and fail to capture the long-term flux trends in P-E-R, modeled fluxes agree remarkably well with GRACE water storage changes on short time scales and significant correlations can be detected down to sub-monthly (daily) time scales.

    KW - ECMWF

    KW - GRACE

    KW - Hydro-Meteorological Fluxes

    M3 - Paper

    ER -