Agronomy, Agricultural and Biosystems Engineering
Journal or Book Title
2010 IEEE International Geoscience & Remote Sensing Symposium, Proceedings
2010 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
July 25–20, 2010
Honolulu, HI, United States
NASA's Soil Moisture Active Passive satellite mission will use both an L-band radiometer and radar to produce global-scale measurements of soil moisture. L-band backscatter is also sensitive to the water content of vegetation. We found that a moderate dew increased the L-band backscatter of a soybean canopy by 1 dB. Dew thus has the potential to add error to satellite observations of soil moisture.
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Hornbuckle, Brian K.; Rowlandson, Tracy L.; Russell, Eric S.; Kaleita, Amy L.; Logsdon, Sally D.; Kruger, Anton; Yueh, Simon; and De Roo, Roger, "How Does Dew Affect L–band Backscatter? Analysis of PALS Data at the Iowa Validation Site and Implications for SMAP" (2010). Agronomy Conference Proceedings and Presentations. 10.