@inproceedings{cd967edee90d4480ad8add4d217777ad,
title = "Active and Passive multi-scale microwave remote sensing of the Alaska Ecological Transect: Application to SMAP freeze/thaw state validation planning",
abstract = "The calibration and validation of the freeze/thaw product of NASA's proposed L-band SMAP (Soil Moisture Active and Passive) radar and radiometer mission requires execution of a strategy for characterization of thermal regime of the relevant landscape elements in terms of freeze/thaw state and the associated relationship to the microwave remote sensing signature. The goal of this study is to improve the understanding of the L-band radar backscatter processes over boreal landscapes by comparing ALOS PALSAR high resolution L-band backscatter images with Ku-band backscatter from the SeaWinds QuikSCAT scatterometer and C-, X- and Ka-band brightness temperatures from the Aqua AMSR-E radiometer. The results show that landscape elements driving the L-band backscatter are different from those at higher (Ku-band) frequencies and establishment of an optimal validation strategy for SMAP requires investigation of L-band measurements at spatial scales and temporal fidelity commensurate with landscape freeze/thaw variability.",
keywords = "ALECTRA, AMSR-E, PALSAR, QuikSCAT, SMAP",
author = "Andreas Colliander and Kyle McDonald and Reiner Zimmerman and Erika Podest and Ronny Schroeder and John Kimball and Eni Njoku",
year = "2011",
doi = "10.1109/IGARSS.2011.6049888",
language = "English",
isbn = "9781457710056",
series = "International Geoscience and Remote Sensing Symposium (IGARSS)",
pages = "3156--3159",
booktitle = "2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Proceedings",
note = "2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 ; Conference date: 24-07-2011 Through 29-07-2011",
}