Search Results - "Eicker, Annette"

Emerging Changes in Terrestrial Water Storage Variability as a Target for Future Satellite Gravity Missions by Jensen, Laura, Eicker, Annette, Dobslaw, Henryk, Pail, Roland

“…Climate change will affect the terrestrial water cycle during the next decades by impacting the seasonal cycle, interannual variations, and long-term linear…”
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Daily GRACE satellite data evaluate short-term hydro-meteorological fluxes from global atmospheric reanalyses by Eicker, Annette, Jensen, Laura, Wöhnke, Viviana, Dobslaw, Henryk, Kvas, Andreas, Mayer-Gürr, Torsten, Dill, Robert

“…Changes in terrestrial water storage as observed by the satellite gravity mission GRACE (Gravity Recovery and Climate Experiment) represent a new and…”
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Multi-Objective Validation of SWAT for Sparsely-Gauged West African River Basins—A Remote Sensing Approach by Poméon, Thomas, Diekkrüger, Bernd, Springer, Anne, Kusche, Jürgen, Eicker, Annette

“…Predicting freshwater resources is a major concern in West Africa, where large parts of the population depend on rain-fed subsistence agriculture. However, a…”
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Observations indicate regionally misleading wetting and drying trends in CMIP6 by Jensen, Laura, Gerdener, Helena, Eicker, Annette, Kusche, Jürgen, Fiedler, Stephanie

“…We evaluate trends in terrestrial water storage over 1950–2100 in CMIP6 climate models against a new global reanalysis from assimilating GRACE and GRACE-FO…”
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Deriving daily snapshots of the Earth's gravity field from GRACE L1B data using Kalman filtering by Kurtenbach, Enrico, Mayer‐Gürr, Torsten, Eicker, Annette

“…Different GRACE data analysis centers provide temporal variations of the Earth's gravity field as monthly, 10‐daily or weekly mean fields. These solutions are…”
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Understanding terrestrial water storage variations in northern latitudes across scales by Trautmann, Tina, Koirala, Sujan, Carvalhais, Nuno, Eicker, Annette, Fink, Manfred, Niemann, Christoph, Jung, Martin

“…The GRACE satellites provide signals of total terrestrial water storage (TWS) variations over large spatial domains at seasonal to inter-annual timescales…”
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Water Budget Analysis within the Surrounding of Prominent Lakes and Reservoirs from Multi-Sensor Earth Observation Data and Hydrological Models: Case Studies of the Aral Sea and Lake Mead by Singh, Alka, Seitz, Florian, Eicker, Annette, Güntner, Andreas

“…The hydrological budget of a region is determined based on the horizontal and vertical water fluxes acting in both inward and outward directions. These…”
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Regional gravity modeling in terms of spherical base functions by Schmidt, Michael, Fengler, Martin, Mayer-Gürr, Torsten, Eicker, Annette, Kusche, Jürgen, Sánchez, Laura, Han, Shin-Chan

“…This article provides a survey on modern methods of regional gravity field modeling on the sphere. Starting with the classical theory of spherical harmonics,…”
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Using Satellite-Based Terrestrial Water Storage Data: A Review by Humphrey, Vincent, Rodell, Matthew, Eicker, Annette

“…Land water storage plays a key role for the Earth’s climate, natural ecosystems, and human activities. Since the launch of the first Gravity Recovery and…”
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Global-scale assessment of groundwater depletion and related groundwater abstractions: Combining hydrological modeling with information from well observations and GRACE satellites by Döll, Petra, Müller Schmied, Hannes, Schuh, Carina, Portmann, Felix T., Eicker, Annette

“…Groundwater depletion (GWD) compromises crop production in major global agricultural areas and has negative ecological consequences. To derive GWD at the grid…”
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Does GRACE see the terrestrial water cycle “intensifying”? by Eicker, Annette, Forootan, Ehsan, Springer, Anne, Longuevergne, Laurent, Kusche, Jürgen

“…Several researchers have postulated that, under a changing climate due to anthropogenic forcing, an intensification of the water cycle is already under way…”
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Predictive Skill Assessment for Land Water Storage in CMIP5 Decadal Hindcasts by a Global Reconstruction of GRACE Satellite Data by Jensen, Laura, Eicker, Annette, Stacke, Tobias, Dobslaw, Henryk

“…The evaluation of decadal climate predictions against observations is crucial for their benefit to stakeholders. While the skill of such forecasts has been…”
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Monthly and sub-monthly hydrological variability: in-orbit validation by GRACE level 1B observations by Eicker, Annette, Springer, Anne

“…In this study, we present an approach to validate hydrological model output directly on the level of GRACE level 1B observations by analyzing K-band range-rate…”
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Seasonal Water Storage Variations as Impacted by Water Abstractions: Comparing the Output of a Global Hydrological Model with GRACE and GPS Observations by Döll, Petra, Fritsche, Mathias, Eicker, Annette, Müller Schmied, Hannes

“…Better quantification of continental water storage variations is expected to improve our understanding of water flows, including evapotranspiration, runoff and…”
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Calibration/Data Assimilation Approach for Integrating GRACE Data into the WaterGAP Global Hydrology Model (WGHM) Using an Ensemble Kalman Filter: First Results by Eicker, Annette, Schumacher, Maike, Kusche, Jürgen, Döll, Petra, Schmied, Hannes Müller

“…We introduce a new ensemble-based Kalman filter approach to assimilate GRACE satellite gravity data into the WaterGAP Global Hydrology Model. The approach (1)…”
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A global analysis of water storage variations from remotely sensed soil moisture and daily satellite gravimetry by Blank, Daniel, Eicker, Annette, Jensen, Laura, Güntner, Andreas

“…Water storage changes in the soil can be observed on a global scale with different types of satellite remote sensing. While active or passive microwave sensors…”
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GROOPS: A software toolkit for gravity field recovery and GNSS processing by Mayer-Gürr, Torsten, Behzadpour, Saniya, Eicker, Annette, Ellmer, Matthias, Koch, Beate, Krauss, Sandro, Pock, Christian, Rieser, Daniel, Strasser, Sebastian, Süsser-Rechberger, Barbara, Zehentner, Norbert, Kvas, Andreas

“…The Gravity Recovery Object Oriented Programming System (GROOPS) is a software toolkit written in C++ that enables the user to perform core geodetic tasks. Key…”
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Influence of GIA Uncertainty on Climate Model Evaluation With GRACE/GRACE‐FO Satellite Gravimetry Data by Eicker, Annette, Schawohl, Lennart, Middendorf, Klara, Bagge, Meike, Jensen, Laura, Dobslaw, Henryk

“…Global coupled climate models are in continuous need for evaluation against independent observations to reveal systematic model deficits and uncertainties…”
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The ITG-Goce02 gravity field model from GOCE orbit and gradiometer data based on the short arc approach by Schall, Judith, Eicker, Annette, Kusche, Jürgen

“…In this contribution, we describe the global GOCE-only gravity field model ITG-Goce02 derived from 7.5 months of gradiometer and orbit data. This model…”
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Mapping probabilities of extreme continental water storage changes from space gravimetry by Kusche, J., Eicker, A., Forootan, E., Springer, A., Longuevergne, L.

“…Using data from the Gravity Recovery And Climate Experiment (GRACE) mission, we derive statistically robust “hot spot” regions of high probability of peak…”
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