topic Re: Spatial referencing OMI Level 3 UV data OMUVBd in Data Management Questions https://community.esri.com/t5/data-management-questions/spatial-referencing-omi-level-3-uv-data-omuvbd/m-p/270091#M15590 <HTML><HEAD></HEAD><BODY><P>If you know the coordinate system, then you can use the define projection tool NOT the project tool.&nbsp; You can only project data once it has a known and defined coordinate system.</P><P></P><P>You should really move this thread from GeoNet Help to a more appropriate location&nbsp; like <A href="https://community.esri.com/space/2050">Managing Data</A>​ or <A href="https://community.esri.com/space/2091">Spatial Analyst</A>​ depending upon your preference</P></BODY></HTML> Tue, 01 Mar 2016 13:58:28 GMT DanPatterson_Retired 2016-03-01T13:58:28Z Spatial referencing OMI Level 3 UV data OMUVBd https://community.esri.com/t5/data-management-questions/spatial-referencing-omi-level-3-uv-data-omuvbd/m-p/270090#M15589 <HTML><HEAD></HEAD><BODY><P>I would like to process the OMI level 3 UV data (OMUVBd) in netCDF format: <A href="http://mirador.gsfc.nasa.gov/cgi-bin/mirador/granlist.pl?page=1&amp;dataSet=OMUVBd&amp;version=003&amp;allversion=003&amp;keyword=omuvbd&amp;pointLocation=%28-90,-180%29,%2890,180%29&amp;location=%28-90,-180%29,%2890,180%29&amp;searchType=Location&amp;event=&amp;startTime=2013-05-19&amp;endTime=2013-05-20%2023:59:59&amp;search=&amp;CGISESSID=238bbd9f45f9223468496e5a13fda2a1&amp;nr=2&amp;temporalres=1%20day&amp;prodpg=http://disc.gsfc.nasa.gov/datacollection/OMUVBd_V003.html&amp;longname=OMI/Aura%20Surface%20UVB%20Irradiance%20and%20Erythemal%20Dose%20Daily%20L3%20Global%201.0x1.0%20deg%20Grid&amp;granulePresentation=ungrouped" title="http://mirador.gsfc.nasa.gov/cgi-bin/mirador/granlist.pl?page=1&amp;dataSet=OMUVBd&amp;version=003&amp;allversion=003&amp;keyword=omuvbd&amp;pointLocation=%28-90,-180%29,%2890,180%29&amp;location=%28-90,-180%29,%2890,180%29&amp;searchType=Location&amp;event=&amp;startTime=2013-05-19&amp;endTime=2013-05-20%2023:59:59&amp;search=&amp;CGISESSID=238bbd9f45f9223468496e5a13fda2a1&amp;nr=2&amp;temporalres=1%20day&amp;prodpg=http://disc.gsfc.nasa.gov/datacollection/OMUVBd_V003.html&amp;longname=OMI/Aura%20Surface%20UVB%20Irradiance%20and%20Erythemal%20Dose%20Daily%20L3%20Global%201.0x1.0%20deg%20Grid&amp;granulePresentation=ungrouped">File Listing for OMI/Aura Surface UVB Irradiance and Erythemal Dose Daily L3 Global 1.0x1.0 deg Grid</A></P><P>However, as I visualized the data in ArcGIS 10.3 with the tool make netCDF raster layer, the spatial reference system could not be defined. I know that OMIUVBd uses EPSG4326 as spatial reference system but I also couldn't change it through tools such as project raster. Any suggestions how I can fix this problem? (I need to get values at specific coordinates)</P><P>Thanks in advance!</P></BODY></HTML> Tue, 01 Mar 2016 13:55:24 GMT https://community.esri.com/t5/data-management-questions/spatial-referencing-omi-level-3-uv-data-omuvbd/m-p/270090#M15589 ChienChihWang 2016-03-01T13:55:24Z Re: Spatial referencing OMI Level 3 UV data OMUVBd https://community.esri.com/t5/data-management-questions/spatial-referencing-omi-level-3-uv-data-omuvbd/m-p/270091#M15590 <HTML><HEAD></HEAD><BODY><P>If you know the coordinate system, then you can use the define projection tool NOT the project tool.&nbsp; You can only project data once it has a known and defined coordinate system.</P><P></P><P>You should really move this thread from GeoNet Help to a more appropriate location&nbsp; like <A href="https://community.esri.com/space/2050">Managing Data</A>​ or <A href="https://community.esri.com/space/2091">Spatial Analyst</A>​ depending upon your preference</P></BODY></HTML> Tue, 01 Mar 2016 13:58:28 GMT https://community.esri.com/t5/data-management-questions/spatial-referencing-omi-level-3-uv-data-omuvbd/m-p/270091#M15590 DanPatterson_Retired 2016-03-01T13:58:28Z