| 3 | | Many oceanography products are published in HDF format but ArcGIS. Arc 9.1 cannot read HDF. Arc 9.2 [http://webhelp.esri.com/arcgisdesktop/9.2/body.cfm?tocVisable=1&ID=2458&TopicName=Supported%20raster%20dataset%20file%20formats is supposed to support HDF] but my experience has not been very good. For example, I have been unable to get it to read !QuickScat HDFs downloaded from PO.DAAC, and it is extremely slow at reading NOAA NODC AVHRR Pathfinder SST HDFs. It also appears that Arc cannot detect the projection used by HDF files (which is not surprising due to the attribute metadata standards issue). As a result, you must copy the HDF to some other format, shift and rescale the data, and define the projection yourself. |
| | 3 | Many oceanography products are published in HDF format but ArcGIS. Arc 9.1 cannot read HDF. Arc 9.2 [http://webhelp.esri.com/arcgisdesktop/9.2/body.cfm?tocVisable=1&ID=2458&TopicName=Supported%20raster%20dataset%20file%20formats is supposed to support HDF] but my experience has not been very good. For example, I have been unable to get it to read [http://podaac-www.jpl.nasa.gov/products/product109.html PO.DAAC QuickSCAT ocean winds] HDFs, and it is extremely slow at reading [http://www.nodc.noaa.gov/sog/pathfinder4km/ NOAA NODC 4 km AVHRR Pathfinder SST] HDFs. It also appears that Arc cannot detect the projection used by HDF files, which is not surprising due to the lack of a widely-adopted standard for HDF metadata attributes. As a result, you must copy the HDF to some other format, shift and rescale the data, and define the projection yourself. |
