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Simulating Snowmelt Floods on the Rivers of the Northern Part of the East European Plain by the TerM Land Surface Model.

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Title: Simulating Snowmelt Floods on the Rivers of the Northern Part of the East European Plain by the TerM Land Surface Model.
Authors: Medvedev, A. I.1,2 (AUTHOR) a.medvedev@rcc.msu.ru, Stepanenko, V. M.1,2,3,4 (AUTHOR), Gelfan, A. N.2,3 (AUTHOR), Bogomolov, V. Yu.5,6 (AUTHOR)
Source: Water Resources. Apr2026, Vol. 53 Issue 2, p201-210. 10p.
Subject Terms: *Snowmelt, *Streamflow, *Atmospheric models, *Hydrologic models, *Frozen ground
Abstract: The TerM land surface model is part of the INMCM global Earth System Model, the only Russian model used in the CMIP global climate experiments conducted in recent decades. The future development of the TerM model is associated with improvement of parameterizations of hydrological processes, particularly snowmelt flood formation processes, the accuracy of which in the current model version does not meet the accepted hydrological criteria. In this paper, we compare the simulated hydrographs of the Northern Dvina and Pechora rivers with observational data for the period 2008–2020. The model configuration uses a 0.5° × 0.5° spatial grid; the input atmospheric parameters are ERA5 reanalysis data with a 1-hour resolution; precipitation data are based on Global Precipitation Climatology Project (GPCP) with a 1-day resolution. Possible sources of model errors are analyzed. To improve the modeling performance, modifications were proposed to the parametrizations of frozen soil processes, subgrid heterogeneity of runoff formation and snow cover, and the radiation balance of snow under forest cover, as well as calibration of the soil infiltration capacity parameter in the catchment area. It was shown that the modified version of the model satisfactorily reproduces the observed spring flood hydrographs. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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  Availability: 0
Header DbId: enr
DbLabel: Energy & Power Source
An: 192346423
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Simulating Snowmelt Floods on the Rivers of the Northern Part of the East European Plain by the TerM Land Surface Model.
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  Data: <searchLink fieldCode="AR" term="%22Medvedev%2C+A%2E+I%2E%22">Medvedev, A. I.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> a.medvedev@rcc.msu.ru</i><br /><searchLink fieldCode="AR" term="%22Stepanenko%2C+V%2E+M%2E%22">Stepanenko, V. M.</searchLink><relatesTo>1,2,3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gelfan%2C+A%2E+N%2E%22">Gelfan, A. N.</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bogomolov%2C+V%2E+Yu%2E%22">Bogomolov, V. Yu.</searchLink><relatesTo>5,6</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Water+Resources%22">Water Resources</searchLink>. Apr2026, Vol. 53 Issue 2, p201-210. 10p.
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  Data: *<searchLink fieldCode="DE" term="%22Snowmelt%22">Snowmelt</searchLink><br />*<searchLink fieldCode="DE" term="%22Streamflow%22">Streamflow</searchLink><br />*<searchLink fieldCode="DE" term="%22Atmospheric+models%22">Atmospheric models</searchLink><br />*<searchLink fieldCode="DE" term="%22Hydrologic+models%22">Hydrologic models</searchLink><br />*<searchLink fieldCode="DE" term="%22Frozen+ground%22">Frozen ground</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The TerM land surface model is part of the INMCM global Earth System Model, the only Russian model used in the CMIP global climate experiments conducted in recent decades. The future development of the TerM model is associated with improvement of parameterizations of hydrological processes, particularly snowmelt flood formation processes, the accuracy of which in the current model version does not meet the accepted hydrological criteria. In this paper, we compare the simulated hydrographs of the Northern Dvina and Pechora rivers with observational data for the period 2008–2020. The model configuration uses a 0.5° × 0.5° spatial grid; the input atmospheric parameters are ERA5 reanalysis data with a 1-hour resolution; precipitation data are based on Global Precipitation Climatology Project (GPCP) with a 1-day resolution. Possible sources of model errors are analyzed. To improve the modeling performance, modifications were proposed to the parametrizations of frozen soil processes, subgrid heterogeneity of runoff formation and snow cover, and the radiation balance of snow under forest cover, as well as calibration of the soil infiltration capacity parameter in the catchment area. It was shown that the modified version of the model satisfactorily reproduces the observed spring flood hydrographs. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1134/S0097807825601955
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 10
        StartPage: 201
    Subjects:
      – SubjectFull: Snowmelt
        Type: general
      – SubjectFull: Streamflow
        Type: general
      – SubjectFull: Atmospheric models
        Type: general
      – SubjectFull: Hydrologic models
        Type: general
      – SubjectFull: Frozen ground
        Type: general
    Titles:
      – TitleFull: Simulating Snowmelt Floods on the Rivers of the Northern Part of the East European Plain by the TerM Land Surface Model.
        Type: main
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            NameFull: Medvedev, A. I.
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            NameFull: Stepanenko, V. M.
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            NameFull: Gelfan, A. N.
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            NameFull: Bogomolov, V. Yu.
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          Dates:
            – D: 01
              M: 04
              Text: Apr2026
              Type: published
              Y: 2026
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              Value: 53
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              Value: 2
          Titles:
            – TitleFull: Water Resources
              Type: main
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