January 2000 classified RADARSAT image depicting winter shorebird habitat in the Willamette Valley, OR

This dataset is one of a collection of three land cover maps of the Willamette Valley of Oregon, USA, depicting 4 habitat classes: wet with <= 50% vegetation cover (class 1), wet with >50% vegetation (class 2), dry with <= 50% vegetation (class 3), dry with >50% vegetation (class 4). Land cover maps were derived by classifying signatures from C-band (5.6 cm wavelength), HH-polarized radar remote sensing (RADARSAT) data collected at a 38 degree incidence angle (8-m resolution). The data are in the form of an ERDAS Imagine image.本数据集为美国俄勒冈州威拉米特河谷（Willamette Valley）的三份土地覆盖图之一，共涵盖4类生境类型：植被覆盖率≤50%的湿地（类别1）、植被覆盖率＞50%的湿地（类别2）、植被覆盖率≤50%的旱地（类别3）、植被覆盖率＞50%的旱地（类别4）。该土地覆盖图通过对C波段（波长5.6厘米）、HH极化的RADARSAT雷达遥感数据进行分类解译得到，此类数据的入射角为38度，空间分辨率为8米。数据集采用ERDAS Imagine图像格式存储。