Crop survey ----ground truth for crop mapping and monitoring

The dataset provides crop-type surveys for Canada's prairie provinces (Manitoba, Saskatchewan and Alberta) in 2020 and 2021. The data were collected via windshield survey(driving through the countryside with GPS-enabled data collection software and satellite imagery). Crop-type points and their geographic coordinates on the ground were gathered using data collection software. Field boundaries were identified on satellite imagery. A single observation point is dropped in a homogeneous area within the field.The crop type survey was collected during the growing season. The crop types are valid only for the specific year of collection, as changes to the crop type grown occur from year to year in Canada. These survey point sources can be used as training or reference sites for crop monitoring and mapping with satellite observations.

本数据集提供了加拿大草原省份（马尼托巴省、萨斯喀彻温省和不列颠哥伦比亚省）2020年和2021年的作物类型调查。数据通过车载调查方式收集，即搭载GPS数据采集软件和卫星图像进行乡村地区的驾驶。利用数据采集软件收集了地面上的作物类型点和其地理坐标。通过卫星图像确定了田地边界。在田地内的同质区域内随机放置单一观测点。作物类型调查在生长季节进行。作物类型仅适用于收集的具体年份，因为加拿大每年的作物类型种植均有变化。这些调查点可以作为卫星观测下的作物监测和制图的训练或参考站点。