黑河生态水文遥感试验：黑河流域中游通量观测矩阵核心试验区土地利用覆被数据集

在2012年中游航空遥感试验开展期间，对黑河中游核心观测区利用航飞CASI数据结合地面调查获得了高分辨率的土地覆盖数据。
分类方法：
基于CASI航空遥感数据，采用分层分类方法对该区域进行分类。树木、草地、裸地+建筑用地类别：综合运用基于像素与基于对象的分类方法。各种农作物类别：对于难以区分的类别，通过结合地面调查点，目视解译得到。

数据内容：
土地覆盖类型，包括玉米、韭菜、白杨、菜花、菜椒，土豆，青笋，果园，西瓜，四季豆，梨园，阴影，非植被和未分类14种地表类型。
观测地点：
黑河中游核心观测区，5*5矩阵。
观测时间：
本次调查时间从2012年6月25日。

During the mid-2012 airborne remote sensing experiment, high-resolution land cover data were acquired for the core observation area in the middle reaches of the Heihe River using airborne CASI data combined with ground surveys.

Classification Methods:
Based on the CASI airborne remote sensing data, a hierarchical classification approach was employed for this region. For categories including trees, grassland, bare land + construction land: both pixel-based and object-based classification methods were comprehensively applied. For various crop categories: for classes that are difficult to distinguish, they were obtained through visual interpretation combined with ground survey points.

Data Content:
Land cover types include 14 surface categories, namely corn, Chinese chives, white poplar, cauliflower, bell pepper, potato, asparagus lettuce, orchard, watermelon, snap bean, pear orchard, shadow, non-vegetation, and unclassified.

Observation Site:
Core observation area in the middle reaches of the Heihe River, arranged in a 5×5 matrix.

Observation Period:
This survey was conducted starting from June 25, 2012.