topic MODIS imagery band 1 reflectance in Data Management Questions https://community.esri.com/t5/data-management-questions/modis-imagery-band-1-reflectance/m-p/562250#M31891 <HTML><HEAD></HEAD><BODY><SPAN>Hi, I'm a pretty new user of ArcGIS, so this might be a silly question, or in the wrong forum! </SPAN><BR /><SPAN>I have imported some MODIS satellite images and would like to know the band 1 (red, 620-670nm) reflectance values of some pixels. However, when I click on a pixel using the Identify tool it gives a value for the red band of between 0 and 250. The literature, however, gives values of around 0.0-0.6 for reflectance. Any idea what the 0-250 value means? It goes up and down according to colour tone, so definitely means something! </SPAN><BR /><SPAN>Thanks for any help!</SPAN></BODY></HTML> Thu, 28 Jun 2012 13:39:47 GMT CatieButler 2012-06-28T13:39:47Z MODIS imagery band 1 reflectance https://community.esri.com/t5/data-management-questions/modis-imagery-band-1-reflectance/m-p/562250#M31891 <HTML><HEAD></HEAD><BODY><SPAN>Hi, I'm a pretty new user of ArcGIS, so this might be a silly question, or in the wrong forum! </SPAN><BR /><SPAN>I have imported some MODIS satellite images and would like to know the band 1 (red, 620-670nm) reflectance values of some pixels. However, when I click on a pixel using the Identify tool it gives a value for the red band of between 0 and 250. The literature, however, gives values of around 0.0-0.6 for reflectance. Any idea what the 0-250 value means? It goes up and down according to colour tone, so definitely means something! </SPAN><BR /><SPAN>Thanks for any help!</SPAN></BODY></HTML> Thu, 28 Jun 2012 13:39:47 GMT https://community.esri.com/t5/data-management-questions/modis-imagery-band-1-reflectance/m-p/562250#M31891 CatieButler 2012-06-28T13:39:47Z Re: MODIS imagery band 1 reflectance https://community.esri.com/t5/data-management-questions/modis-imagery-band-1-reflectance/m-p/562251#M31892 <HTML><HEAD></HEAD><BODY><SPAN>It sounds like you downloaded an 8-bit digital number product and not at-sensor reflectance.</SPAN></BODY></HTML> Thu, 28 Jun 2012 18:02:35 GMT https://community.esri.com/t5/data-management-questions/modis-imagery-band-1-reflectance/m-p/562251#M31892 JeffreyEvans 2012-06-28T18:02:35Z