Montana NAIP 2021

This is an ArcGIS Server Image Service of the 4-band 2021 National Agricultural Imagery Program (NAIP) orthorectified digital aerial photos of Montana. Imagery defaults to natural color. To view the imagery as false-color infrared (CIR), select band 4 as the red image, band 1 as the green, and band 2 as the blue. Or you can use the three processing templates: Natural Color, Color Infrared, and Normalized Difference Vegetation Index (NDVI) to symbolgize the service. This data set contains imagery from the National Agriculture Imagery Program (NAIP). These data are digital aerial photos, at 60 centimeter resolution, of the state of Montana, taken in 2021. The data are available from the State Library in two different formats. The most accessible format is a downloadable collection of compressed county mosaic (CCM) 4-Band MrSID images. These data are in UTM coordinates. The FTP folder containing these images is https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2021_NAIP/UTM_County_Mosaics The data are available from the State Library as a collection 11,776 4-band (near infrared, red, green and blue) TIFF images in UTM coordinates. Each image is about 425 megabytes. The tiling format of the TIFF imagery is based on 3.75 x 3.75 minute quarter-quadrangles with a 300 pixel buffer on all four sides. An ESRI shapefile index showing the extent and acquisition dates of the TIF images is available at https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2021_NAIP/NAIP2021_Index_Final_UTMZone12.zip To order TIFF images from the State Library, select the quadrangles you want from the tiff index shapefile and send them to the Library, along with a storage device of sufficient size to hold them and return postage for the device. More information on ordering can be found at the following website https://msl.mt.gov/geoinfo/data/Aerial_Photos/Ordering本数据集为蒙大拿州2021年国家农业影像计划（National Agricultural Imagery Program, NAIP）四波段正射校正数码航空影像的ArcGIS Server影像服务。影像默认采用自然色彩渲染。若需以假彩色红外（false-color infrared, CIR）模式查看影像，请将波段4映射为红色通道、波段1映射为绿色通道、波段2映射为蓝色通道。您也可通过三种处理模板对该服务进行符号化：自然色彩、彩色红外以及归一化差分植被指数（Normalized Difference Vegetation Index, NDVI）。本数据集包含国家农业影像计划（NAIP）获取的影像数据，为2021年拍摄的蒙大拿州全域数码航空影像，分辨率达60厘米。该数据可通过蒙大拿州州立图书馆获取两种格式版本：最便于获取的格式为可下载的压缩县级镶嵌（county mosaic, CCM）四波段MrSID影像，采用UTM坐标系，其FTP存储目录为https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2021_NAIP/UTM_County_Mosaics。另一种格式为11776幅四波段（近红外、红、绿、蓝）TIFF影像集合，同样采用UTM坐标系，单幅影像大小约为425兆字节。该TIFF影像的瓦片划分基于3.75×3.75分的四分象限格网，且四周均带有300像素的缓冲区。可通过https://ftpgeoinfo.msl.mt.gov/Data/Spatial/MSDI/Imagery/2021_NAIP/NAIP2021_Index_Final_UTMZone12.zip 获取展示TIFF影像范围与获取日期的ESRI形状文件索引。若需向州立图书馆订购TIFF影像，请从TIFF索引形状文件中选取所需的象限格网，连同足量存储设备及设备回寄邮费一并发送至图书馆。更多订购相关信息可访问以下网址：https://msl.mt.gov/geoinfo/data/Aerial_Photos/Ordering