תפריט נגישות
ניגודיות עדינהניגודיות גבוהה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
להורדת מודול נגישות חינם תפריט נגישותניגודיות עדינהניגודיות גבוההמונוכרוםהדגשת קישוריםחסימת אנימציהפונט קריאסגוראיפוס הגדרות נגישותלהורדת מודול נגישות חינםShai Sela ,Tal Svoray - ) Dept. of Geography and Environmental Development, Ben-Gurion University of the Negev, Israel
Recent advances in remote sensing technologies have led spaceborn platforms to emerge as successful tools in studying and monitoring soil moisture dynamics. A common need for all remote sensing missions is intensive ground soil moisture samplings for validating predictions and the calibration of retrieval algorithms usually conducted using a network of soil moisture probes. These probes generally have a minimal size of approximately 5 cm, due to technical limits. When these probes are used for validation at the top soil layer, the validation depth is deeper than the sensor effective penetration depth generally of 0-3 cm, a bias which can affect validation results. In dryland areas, where physical sealing of the soil is a wide spread phenomenon, validation can be even more complex. The seal layer has different hydraulic parameters than the underlying soil, with a much lower hydraulic conductivity that affect both infiltration and evaporation fluxes.
EGU General Assembly 2013, held 7-12 April, 2013 in Vienna, Austria, id. EGU2013-4509
Shai Sela ,Tal Svoray - ) Dept. of Geography and Environmental Development, Ben-Gurion University of the Negev, Israel
Recent advances in remote sensing technologies have led spaceborn platforms to emerge as successful tools in studying and monitoring soil moisture dynamics. A common need for all remote sensing missions is intensive ground soil moisture samplings for validating predictions and the calibration of retrieval algorithms usually conducted using a network of soil moisture probes. These probes generally have a minimal size of approximately 5 cm, due to technical limits. When these probes are used for validation at the top soil layer, the validation depth is deeper than the sensor effective penetration depth generally of 0-3 cm, a bias which can affect validation results. In dryland areas, where physical sealing of the soil is a wide spread phenomenon, validation can be even more complex. The seal layer has different hydraulic parameters than the underlying soil, with a much lower hydraulic conductivity that affect both infiltration and evaporation fluxes.
EGU General Assembly 2013, held 7-12 April, 2013 in Vienna, Austria, id. EGU2013-4509
