Preprint Article Version 1 This version is not peer-reviewed

Additional Value of Using Satellite-Based Soil Moisture and Two Sources of Groundwater Data for Hydrological Model Calibration

Version 1 : Received: 4 September 2019 / Approved: 5 September 2019 / Online: 5 September 2019 (10:14:35 CEST)

A peer-reviewed article of this Preprint also exists.

Demirel, M.C.; Özen, A.; Orta, S.; Toker, E.; Demir, H.K.; Ekmekcioğlu, Ö.; Tayşi, H.; Eruçar, S.; Sağ, A.B.; Sarı, Ö.; Tuncer, E.; Hancı, H.; Özcan, T.İ.; Erdem, H.; Koşucu, M.M.; Başakın, E.E.; Ahmed, K.; Anwar, A.; Avcuoğlu, M.B.; Vanlı, Ö.; Stisen, S.; Booij, M.J. Additional Value of Using Satellite-Based Soil Moisture and Two Sources of Groundwater Data for Hydrological Model Calibration. Water 2019, 11, 2083. Demirel, M.C.; Özen, A.; Orta, S.; Toker, E.; Demir, H.K.; Ekmekcioğlu, Ö.; Tayşi, H.; Eruçar, S.; Sağ, A.B.; Sarı, Ö.; Tuncer, E.; Hancı, H.; Özcan, T.İ.; Erdem, H.; Koşucu, M.M.; Başakın, E.E.; Ahmed, K.; Anwar, A.; Avcuoğlu, M.B.; Vanlı, Ö.; Stisen, S.; Booij, M.J. Additional Value of Using Satellite-Based Soil Moisture and Two Sources of Groundwater Data for Hydrological Model Calibration. Water 2019, 11, 2083.

Journal reference: Water 2019, 11, 2083
DOI: 10.3390/w11102083

Abstract

Although the complexity of physically based models continues to increase, they still need to be calibrated. In recent years, there has been an increasing interest in using new satellite technologies and products with high resolution in model evaluations and decision-making. The aim of this study is to investigate the value of different remote sensing products and groundwater level measurements in the temporal calibration of a well-known hydrologic model i.e. HBV. This has been rarely done for conceptual models as satellite data are often used in spatial calibration of the distributed models. Three different soil moisture products from ESA CCI SM v04.4, AMSR-E and SMAP, and total water storage anomalies from GRACE are collected and spatially averaged over the Moselle River Basin in Germany and France. Different combinations of objective functions and search algorithms all targeting a good fit between observed and simulated streamflow, groundwater and soil moisture are used to analyse the contribution of each individual source of information. Firstly, the most important parameters are selected using sensitivity analysis and then, these parameters are included in a subsequent model calibration. The results of our multi-objective calibration reveal substantial contribution of remote sensing products to the lumped model calibration even if their spatially distributed information is lost during the spatial aggregation. Inclusion of new observations such as groundwater levels from wells and remotely sensed soil moisture to the calibration improves the model’s physical behaviour while it keeps a reasonable water balance that is the key objective of every hydrologic model.

Subject Areas

HBV, GRACE, SMAP, ESA CCI SM v04.4, AMSR-E, Moselle River

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