NAIP 2022 NDVI 60cm California

A Normalized Difference Vegetation Index (NDVI) was applied to the source NAIP 2022 60cm imagery. NDVI=(NearIR-Red)/(NearIR+Red). The color ramp (produced by ESRI) goes from brown (less healthy vegetation) to red to green (healthier vegetation or more "greenness"). This service is offered by the California Department of Fish and Wildlife (CDFW). For more information about CDFW map services, please visit: https://wildlife.ca.gov/Data/GIS/Map-Services我们将归一化差异植被指数（Normalized Difference Vegetation Index，NDVI）应用于原始NAIP 2022年60厘米分辨率影像。NDVI的计算公式为：NDVI=(近红外波段-红光波段)/(近红外波段+红光波段)。由ESRI制作的色彩渐变色阶从代表植被健康度较低的棕色，过渡至红色，最终抵达代表植被健康度更高或绿度更强的绿色。本服务由加利福尼亚州鱼类与野生动物局（California Department of Fish and Wildlife，CDFW）提供。如需了解更多关于CDFW地图服务的相关信息，请访问：https://wildlife.ca.gov/Data/GIS/Map-Services