Aircraft L-band VV-, HH-, and VH-polarizations were examined as tools for monitoring burn recovery in a coastal marsh. Significant relationships were observed between time-since-burn (difference between burn and image collection dates; 550-900 days after burn) and returns related to all polarizations. As marsh burn recovery progressed, VV returns decreased while HH and VH returns increased. Radar returns extracted from control sites adjacent to each burn-simulated nonburn marsh and were not individually or in combination significantly related to the timesince-burn. Normalized by the control data, VH-polarization explained up to 83% of the total variations. Overall, the L-band multipolarization radars estimated time-since-burn within ±59 to ±92 days.
|Title||Using multiple-polarization L-band radar to monitor marsh burn recovery|
|Authors||Elijah W. Ramsey, G.A. Nelson, S.K. Sapkota, S.C. Laine, J. Verdi, S. Rrasznay|
|Publication Subtype||Journal Article|
|Series Title||IEEE Transactions on Geoscience and Remote Sensing|
|Record Source||USGS Publications Warehouse|
|USGS Organization||National Wetlands Research Center|