title: Accuracy evaluation of snow water equivalent global data: The case of the Northern Dvina River basin
metadata.name: dc.contributor.author
metadata.value: Georgievsky, Mikhail V.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Khomyakova, Victoria A.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Parshina, Tatyana V.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2020-12-17T10:31:17Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2020-12-17T10:31:17Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2020-09
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Georgievsky M.V., Khomyakova V.A., Parshina T.V.(2020).Accuracy evaluation of snow water equivalent global data: The case of the Northern Dvina River basin. Vestnik of Saint Petersburg University. Earth Sciences, 65 (3), 434–454.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/spbu07.2020.302
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/21677
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: The article presents a comprehensive multilevel accuracy evaluation of global snow water
  equivalent (SWE) datasets performed for the territory of the Northern Dvina River basin,
  where snow plays an important role in the formation of spring runoff and the increase in
  winter runoff during recent decades due to ongoing climate change. Six global snow water
  equivalent datasets, available on the National Snow and Ice Data Center website (all currently
  available global SWE data), were used in this study. Snow survey data of the Roshydromet
  observation network were used as ground-based observations. The accuracy of dataset values
  of SWE was evaluated by comparison with ground observations in several successive stages.
  In the first stage, the global SWE values were compared with the observational data for several
  selected weather stations, i. e., the dataset values of SWE belonging to a particular grid cell
  were compared with the snow survey values of a weather station located in this cell. In the
  second stage, the SWE values averaged over one of the main subbasins of the Northern Dvina,
  the Small Northern Dvina River basin, were analyzed. The final stage was the SWE comparison for the entire Northern Dvina River basin. The methodology for ranking data depending
  on their accuracy based on comparison with ground-based observations of several basic parameters of quantitative changes in SWE during periods of formation and before the start of
  melting (maximum SWE) was specially developed to implement the accuracy evaluation and
  SWE comparison. A comprehensive comparative analysis performed based on the developed
  methodology revealed that the accuracy of global SWE data increases with the investigation
  area (i.e., the volume of information used) for which the comparison is being carried out. The
  closest to the observed SWE values for all datasets were obtained for the whole Northern Dvina River basin. The ranking methodology and the implemented analysis helped to determine
  the most promising global SWE data for future use.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Earth Sciences;Volume 65; Issue 3
metadata.lang: -
metadata.name: dc.subject
metadata.value: Northern Dvina
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: snow water equivalent global data
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: snow surveys
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: maximum snow water equivalent, multilevel comparative accuracy evaluation
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Accuracy evaluation of snow water equivalent global data: The case of the Northern Dvina River basin
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 434-454.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/21677/1/434-454.pdf
resources.format: Adobe PDF
resources.size: 3,03 MB