<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Mean annual recharge in the Danube-Tisza sand plateau region of Hungary over the 2000-2008 period was estimated at a 1-km spatial resolution as the difference of mean annual precipitation (<italic>P</italic>) and evapotranspiration (<italic>ET</italic>). The <italic>ET</italic> rates were derived from linear transformations of the MODIS daytime land surface temperature (<italic>Ts</italic>) values with the help of ancillary atmospheric data (air temperature, humidity, and sunshine duration). The groundwater under the sand plateau receives about 75 ± 50 mm of recharge annually (the plus/minus value is the associated error, resulting from an assumed 5% error in both the <italic>P</italic> and <italic>ET</italic> values), which is about 14 ± 9 % of the regional mean annual <italic>P</italic> value of 550 mm. The largest continuous region with elevated recharge rates (about 180 ± 50 mm a-1 or 30 ± 8 % of <italic>P</italic>) occur in the south-western part of the plateau due to more abundant precipitation (around 580 mm a-1), while recharge is the smallest (about 40 ± 40 mm a-1 or 7 ± 7 % of <italic>P</italic>) under forested areas. Typically, lakes, wetlands, river valleys, and certain afforested areas in the north-central part of the region act as discharge areas for groundwater.</abstract>

Mean annual recharge in the Danube-Tisza sand plateau region of Hungary over the 2000-2008 period was estimated at a 1-km spatial resolution as the difference of mean annual precipitation (P) and evapotranspiration (ET). The ET rates were derived from linear transformations of the MODIS daytime land surface temperature (Ts) values with the help of ancillary atmospheric data (air temperature, humidity, and sunshine duration). The groundwater under the sand plateau receives about 75 ± 50 mm of recharge annually (the plus/minus value is the associated error, resulting from an assumed 5% error in both the P and ET values), which is about 14 ± 9 % of the regional mean annual P value of 550 mm. The largest continuous region with elevated recharge rates (about 180 ± 50 mm a-1 or 30 ± 8 % of P) occur in the south-western part of the plateau due to more abundant precipitation (around 580 mm a-1), while recharge is the smallest (about 40 ± 40 mm a-1 or 7 ± 7 % of P) under forested areas. Typically, lakes, wetlands, river valleys, and certain afforested areas in the north-central part of the region act as discharge areas for groundwater.

Remote-Sensing Based Groundwater Recharge Estimates in the Danube-Tisza Sand Plateau Region of Hungary

Department of Hydraulic and Water Resources Engineering, Budapest University of Technology and Economics, Muegyetem Rakpart 3-9, Budapest, H-1111, Hungary

School of Natural Resources, University of Nebraska-Lincoln, 3310 Holdrege Street HH625, 68583, Lincoln, Nebraska, USA

Journal of Hydrology and Hydromechanics

Mean annual recharge in the Danube-Tisza sand plateau region of Hungary over the 2000-2008 period was estimated at a 1-km spatial resolution as the difference...

Remote-Sensing Based Groundwater Recharge Estimates in the Danube-Tisza Sand Plateau Region of Hungary

Publié en ligne: 06 mars 2012

Pages: 64 - 72

DOI: https://doi.org/10.2478/v10098-012-0006-3

Mots clés
doplňovanie podzemných vôd, MODIS, plató Dunaj-Tisa

This content is open access.

Remote-Sensing Based Groundwater Recharge Estimates in the Danube-Tisza Sand Plateau Region of Hungary

Publié en ligne: 06 mars 2012

Pages: 64 - 72

DOI: https://doi.org/10.2478/v10098-012-0006-3

Mots clésdoplňovanie podzemných vôd, MODIS, plató Dunaj-Tisa

This content is open access.

Mots clés
doplňovanie podzemných vôd, MODIS, plató Dunaj-Tisa