Evaluating the efficiency of earth2Observe reanalysis models and VIC-3L for estimation of runoff

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Koohi Sakine; AZIZIAN ASGHAR; Brocca Luca

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Journal: JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION Year:2019 | Volume:8 | Issue:4 Page(s): 117-132

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Title

Evaluating the efficiency of earth2Observe reanalysis models and VIC-3L for estimation of runoff

Author(s)

Koohi Sakine | AZIZIAN ASGHAR | Brocca Luca | Issue Writer Certificate

Keywords

Earth2Observe;Hydrological modelsQ1

land surface modelsQ1

RunoffQ2

VIC-3LQ1

Abstract

Over the past decades, several rainfall-Runoff models including global hydrological model (GHMs) and land surface models (LSMs) have been developed for simulation of hydrological variables. One of the most important problems that limits the using of such models is that these models require a huge amounts of inputs and providing them is almost impossible, especially in data-limited regions. The main objective of this study is to assess the performance of Earth2Observe's GHMs and LSMs reanalysis models in estimating Runoff at the outlet of Sefidrood river basin (SRB). In addition, for better evaluating the efficiency of Earth2Observe uncalibrated models, the VIC-3L land surface model is implemented over the SRB and calibrated using observed discharges. Results showed that, based on CC and NS statistics, the performance of SURFEX-TRIP model in both daily and monthly time scales is the best one and it led to the same results as well as VIC-3L calibrated model. The values of CC and NS statistics, at daily time scale, in the case of SURFEX-TRIP model are 0. 75 and 0. 55, respectively, while at the monthly time scale these values are 0. 86 and 0. 73, respectively. As an overall, findings indicate that LSMs performs better than GHMs in simulating Runoff and this may be due to the ability of LSMs in considering both water and energy budgets and they can exchange energy and mass between land surface and atmosphere. Therefore it is highly recommended to use the results of reanalysis models as an appropriate guidance, particularly in the cases of ungauged catchments or data restricted areas.

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APA: Copy

Koohi, Sakine, AZIZIAN, ASGHAR, & Brocca, Luca. (2019). Evaluating the efficiency of earth2Observe reanalysis models and VIC-3L for estimation of runoff. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, 8(4 ), 117-132. SID. https://sid.ir/paper/232186/en

Vancouver: Copy

Koohi Sakine, AZIZIAN ASGHAR, Brocca Luca. Evaluating the efficiency of earth2Observe reanalysis models and VIC-3L for estimation of runoff. JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION[Internet]. 2019;8(4 ):117-132. Available from: https://sid.ir/paper/232186/en

IEEE: Copy

Sakine Koohi, ASGHAR AZIZIAN, and Luca Brocca, “Evaluating the efficiency of earth2Observe reanalysis models and VIC-3L for estimation of runoff,” JOURNAL OF WATER AND SOIL RESOURCES CONSERVATION, vol. 8, no. 4 , pp. 117–132, 2019, [Online]. Available: https://sid.ir/paper/232186/en

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