scholarly journals Globally gridded terrestrial water storage variations from GRACE satellite gravimetry for hydrometeorological applications

2016 ◽  
Vol 206 (1) ◽  
pp. 368-378 ◽  
Author(s):  
Liangjing Zhang ◽  
Henryk Dobslaw ◽  
Maik Thomas
Keyword(s):  
Water Storage ◽  
Terrestrial Water Storage ◽  
Satellite Gravimetry ◽  
Terrestrial Water ◽  
Grace Satellite Gravimetry ◽  
Grace Satellite

scholarly journals Validation of MPI-ESM Decadal Hindcast Experiments with Terrestrial Water Storage Variations as Observed by the GRACE Satellite Mission

2016 ◽  
Vol 25 (6) ◽  
pp. 685-694 ◽  
Author(s):  
Liangjing Zhang ◽  
Henryk Dobslaw ◽  
Christoph Dahle ◽  
Ingo Sasgen ◽  
Maik Thomas
Keyword(s):  
Water Storage ◽  
Terrestrial Water Storage ◽  
Satellite Mission ◽  
Terrestrial Water ◽  
Grace Satellite

scholarly journals Validation of terrestrial water storage variations as simulated by different global numerical models with GRACE satellite observations

2017 ◽  
Vol 21 (2) ◽  
pp. 821-837 ◽  
Author(s):  
Liangjing Zhang ◽  
Henryk Dobslaw ◽  
Tobias Stacke ◽  
Andreas Güntner ◽  
Robert Dill ◽  
...  
Keyword(s):  
Large Scale ◽  
Water Cycle ◽  
Numerical Models ◽  
Water Storage ◽  
Terrestrial Water Storage ◽  
Satellite Mission ◽  
Validation Data ◽  
Data Set ◽  
Terrestrial Water ◽  
Grace Satellite

Abstract. Estimates of terrestrial water storage (TWS) variations from the Gravity Recovery and Climate Experiment (GRACE) satellite mission are used to assess the accuracy of four global numerical model realizations that simulate the continental branch of the global water cycle. Based on four different validation metrics, we demonstrate that for the 31 largest discharge basins worldwide all model runs agree with the observations to a very limited degree only, together with large spreads among the models themselves. Since we apply a common atmospheric forcing data set to all hydrological models considered, we conclude that those discrepancies are not entirely related to uncertainties in meteorologic input, but instead to the model structure and parametrization, and in particular to the representation of individual storage components with different spatial characteristics in each of the models. TWS as monitored by the GRACE mission is therefore a valuable validation data set for global numerical simulations of the terrestrial water storage since it is sensitive to very different model physics in individual basins, which offers helpful insight to modellers for the future improvement of large-scale numerical models of the global terrestrial water cycle.

scholarly journals Specifics of long-term dynamics of terrestrial water storage detected using GRACE satellite in Belgorod region

2020 ◽  
Vol 15 (4) ◽  
pp. 363-374
Author(s):  
Igor Yu. Savin ◽  
Bakhytnur S. Gabdullin
Keyword(s):  
Satellite Data ◽  
Water Storage ◽  
Local Maximum ◽  
Positive Trend ◽  
Terrestrial Water Storage ◽  
Entire Area ◽  
North West ◽  
Terrestrial Water ◽  
Grace Satellite

GRACE monthly satellite data for the period from 2002 to 2016 were used to analyze the longterm dynamics of the terrestrial water storage in the Belgorod region of Russia. The correlation of satellite data with climatic water balance with a lag varying on the territory from 2 to 4 months was revealed. There was found a stable tendency to decrease in terrestrial water storage, and predominance of negative values on the territory of the Belgorod region since 2008. The minimum attains the lowest values in comparison with the whole studied period. However, seasonality of the changes is maintained throughout the entire analyzed time series. The frequency of changes in the terrestrial water storage throughout the entire area is not very clear: only the long-term maximum of the terrestrial water storage of the territory in 2006 is well expressed. Another, less pronounced local maximum was observed in 2013. Local long-term minima of the terrestrial water storage of the territory were in 2002, 2009 and 2015. There is a positive trend in the amplitude of seasonal fluctuations in the terrestrial water storage of the territory: the amplitude has been constantly increasing in recent years. The territory of the Belgorod region has negative long-term trend of terrestrial water storage with their rather large spatial variation. The angle of inclination of the trend decreases from north-west to south-east in the region. GRACE satellite data can serve as a fairly reliable detection indicator of the trend of terrestrial water storage in large areas.

Sign in / Sign up

Export Citation Format

Share Document