Many-year variations of river runoff in the Selenga basin
Many-year variations of river runoff in the Selenga basin are analyzed along with precipitation, potential evapotranspiration, and basin water storages. Data of ground-based (1932–2015) and satellite observations, as well as the analysis of literature data suggest the presence of within-century cycl...
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Veröffentlicht in: | Water resources 2017-05, Vol.44 (3), p.359-371 |
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creator | Frolova, N. L. Belyakova, P. A. Grigor’ev, V. Yu Sazonov, A. A. Zotov, L. V. |
description | Many-year variations of river runoff in the Selenga basin are analyzed along with precipitation, potential evapotranspiration, and basin water storages. Data of ground-based (1932–2015) and satellite observations, as well as the analysis of literature data suggest the presence of within-century cycles in the series of annual and minimum runoff. Compared with 1934–1975, the Selenga Basin shows a general tendency toward a decrease in the maximum (by 5–35%) and mean annual (up to 15%) runoff at an increase in the minimum runoff (by 30%), a decrease in the mean annual precipitation (by 12%), and an increase in potential evapotranspiration by 4% against the background of a decrease in evaporation because of lesser soil moisture content and an increase in moisture losses for infiltration because of permafrost degradation. The observed changes in water balance may have unfavorable environmental effects. |
doi_str_mv | 10.1134/S0097807817030101 |
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L. ; Belyakova, P. A. ; Grigor’ev, V. Yu ; Sazonov, A. A. ; Zotov, L. V.</creator><creatorcontrib>Frolova, N. L. ; Belyakova, P. A. ; Grigor’ev, V. Yu ; Sazonov, A. A. ; Zotov, L. V.</creatorcontrib><description>Many-year variations of river runoff in the Selenga basin are analyzed along with precipitation, potential evapotranspiration, and basin water storages. Data of ground-based (1932–2015) and satellite observations, as well as the analysis of literature data suggest the presence of within-century cycles in the series of annual and minimum runoff. Compared with 1934–1975, the Selenga Basin shows a general tendency toward a decrease in the maximum (by 5–35%) and mean annual (up to 15%) runoff at an increase in the minimum runoff (by 30%), a decrease in the mean annual precipitation (by 12%), and an increase in potential evapotranspiration by 4% against the background of a decrease in evaporation because of lesser soil moisture content and an increase in moisture losses for infiltration because of permafrost degradation. The observed changes in water balance may have unfavorable environmental effects.</description><identifier>ISSN: 0097-8078</identifier><identifier>EISSN: 1608-344X</identifier><identifier>DOI: 10.1134/S0097807817030101</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Annual precipitation ; Aquatic Pollution ; Atmospheric precipitations ; Basins ; Data processing ; Degradation ; Earth and Environmental Science ; Earth Sciences ; Environmental effects ; Evaporation ; Evapotranspiration ; Ground-based observation ; Hydrogeology ; Hydrology/Water Resources ; Infiltration ; Moisture content ; Permafrost ; Precipitation ; River discharge ; River flow ; Rivers ; Runoff ; Satellite observation ; Satellites ; Soil ; Soil degradation ; Soil moisture ; Waste Water Technology ; Water balance ; Water Management ; Water Pollution Control ; Water Resources and the Regime of Water Bodies</subject><ispartof>Water resources, 2017-05, Vol.44 (3), p.359-371</ispartof><rights>Pleiades Publishing, Ltd. 2017</rights><rights>Water Resources is a copyright of Springer, 2017.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a339t-e4aca65cf633285aeb3c56d177bf8715622f3ab9bf96b8064bfe84b4fac9b9283</citedby><cites>FETCH-LOGICAL-a339t-e4aca65cf633285aeb3c56d177bf8715622f3ab9bf96b8064bfe84b4fac9b9283</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S0097807817030101$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S0097807817030101$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,778,782,27907,27908,41471,42540,51302</link.rule.ids></links><search><creatorcontrib>Frolova, N. 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Compared with 1934–1975, the Selenga Basin shows a general tendency toward a decrease in the maximum (by 5–35%) and mean annual (up to 15%) runoff at an increase in the minimum runoff (by 30%), a decrease in the mean annual precipitation (by 12%), and an increase in potential evapotranspiration by 4% against the background of a decrease in evaporation because of lesser soil moisture content and an increase in moisture losses for infiltration because of permafrost degradation. The observed changes in water balance may have unfavorable environmental effects.</description><subject>Annual precipitation</subject><subject>Aquatic Pollution</subject><subject>Atmospheric precipitations</subject><subject>Basins</subject><subject>Data processing</subject><subject>Degradation</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Environmental effects</subject><subject>Evaporation</subject><subject>Evapotranspiration</subject><subject>Ground-based observation</subject><subject>Hydrogeology</subject><subject>Hydrology/Water Resources</subject><subject>Infiltration</subject><subject>Moisture content</subject><subject>Permafrost</subject><subject>Precipitation</subject><subject>River discharge</subject><subject>River flow</subject><subject>Rivers</subject><subject>Runoff</subject><subject>Satellite observation</subject><subject>Satellites</subject><subject>Soil</subject><subject>Soil degradation</subject><subject>Soil moisture</subject><subject>Waste Water Technology</subject><subject>Water balance</subject><subject>Water Management</subject><subject>Water Pollution Control</subject><subject>Water Resources and the Regime of Water Bodies</subject><issn>0097-8078</issn><issn>1608-344X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kEFLAzEQhYMouFZ_gLeA59WZTTabHKWoFSoequBtmaxJ3VKzNdkt9N-7pR4E8TSH931v4DF2iXCNKOTNAsBUGiqNFQhAwCOWoQKdCynfjlm2j_N9fsrOUlrBiIA2GTNPFHb5zlHkW4ot9W0XEu88j-3WRR6H0HnP28D7D8cXbu3Ckril1IZzduJpndzFz52w1_u7l-ksnz8_PE5v5zkJYfrcSWpIlY1XQhS6JGdFU6p3rCrrdYWlKgovyBrrjbIalLTeaWmlp8ZYU2gxYVeH3k3svgaX-nrVDTGML2s0gKhLpdVI4YFqYpdSdL7exPaT4q5GqPcL1X8WGp3i4KSRDUsXfzX_K30DP5Bm3g</recordid><startdate>20170501</startdate><enddate>20170501</enddate><creator>Frolova, N. 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Compared with 1934–1975, the Selenga Basin shows a general tendency toward a decrease in the maximum (by 5–35%) and mean annual (up to 15%) runoff at an increase in the minimum runoff (by 30%), a decrease in the mean annual precipitation (by 12%), and an increase in potential evapotranspiration by 4% against the background of a decrease in evaporation because of lesser soil moisture content and an increase in moisture losses for infiltration because of permafrost degradation. The observed changes in water balance may have unfavorable environmental effects.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S0097807817030101</doi><tpages>13</tpages></addata></record> |
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subjects | Annual precipitation Aquatic Pollution Atmospheric precipitations Basins Data processing Degradation Earth and Environmental Science Earth Sciences Environmental effects Evaporation Evapotranspiration Ground-based observation Hydrogeology Hydrology/Water Resources Infiltration Moisture content Permafrost Precipitation River discharge River flow Rivers Runoff Satellite observation Satellites Soil Soil degradation Soil moisture Waste Water Technology Water balance Water Management Water Pollution Control Water Resources and the Regime of Water Bodies |
title | Many-year variations of river runoff in the Selenga basin |
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