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Title:   Author  item
                                            O'NEILL, P - NASA GSFCitem
                                            JOSEPH, A - NASA GSFCitem
                                            NELSON, R - NASA GSFCitem
                                            LANG, R - GEORGE WASHINGTON UNIV.item
                                            KURUM, M - GEORGE WASHINGTON UNIV.item
                                            Cosh, Michaelitem
                                            Jackson, Thomasitem
                                            SPICKNALL, M - UNIV. OF MD
  Submitted to: International Geoscience and Remote Sensing Symposium Proceedings
                                    Publication Type: Proceedings
                                    Publication Acceptance Date: 7/1/2007
                                    Publication  Date: 11/1/2007
                                    Citation: O'Neill, P.E., Joseph, A., Nelson, R., Lang, R., Kurum, M., Cosh, M.H., Jackson, T.J., Spicknall, M. 2007. ComRAD active/passive microwave measurement of tree canopies. In: Proceedings of the International Geoscience and Remote Sensing Symposium, July 23-27, 2007, Barcelona, Spain. p. 1420-1423.Interpretive Summary:
                                Technical Abstract: The NASA/GSFC and George Washington University network analyzer-based multifrequency truck-mounted radar system has recently been upgraded with the addition of a dual-polarized 1.4 GHz total power radiometer. The system, now called ComRAD for Combined Radar/Radiometer, can function as a ground-based instrument simulator for L band space missions such as Hydros, Aquarius, and SMOS. In late summer 2006 ComRAD was deployed to the field to begin a series of coordinated active/passive L band measurements over small stands of deciduous and coniferous trees in order to improve our understanding of the microwave properties of trees and their effect on soil moisture retrieval algorithms. This paper describes the preliminary measurements obtained at the start of a three-year planned field measurement effort.


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