smilew Posted May 20, 2011 Report Share Posted May 20, 2011 I have downloaded some he5 format data,but how to process it?how to calibrate it?DO anyboby have used it? Thanks! Quote Link to comment Share on other sites More sharing options...
Lurker Posted May 20, 2011 Report Share Posted May 20, 2011 where you get those file ? is it kind of satellite image data ? I just search it on Internet, and found that this file extension related to HDF file this tool will help you [hide] http://hdfeos.org/software/tool.php [/hide] NOTE : I think this thread better go to DATA subforum Quote Link to comment Share on other sites More sharing options...
3dbu Posted May 20, 2011 Report Share Posted May 20, 2011 I have downloaded some he5 format data,but how to process it?how to calibrate it?DO anyboby have used it? Thanks! the first step should be explain thsi type of format: HDF5 --- Hierarchical Data Format Release 5 (HDF5) This driver intended for HDF5 file formats importing. This modification is suited for use with remote sensing data and fully compatible with underlying HDF5. This driver can import HDF5-EOS files. Currently EOS use HDF5 for data storing (telemetry form `Aura' satellites). In the future they will switch to HDF5 format, which will be used for telemetry from `Aura' satellite. Multiple Image Handling (Subdatasets) Hierarchical Data Format is a container for several different datasets. For data storing. HDF contains multidimensional arrays filled by data. One HDF file may contain several arrays. They may differ in size, number of dimensions. The first step is to get a report of the components images (arrays) in the file using gdalinfo, and then to import the desired images using gdal_translate. The gdalinfo utility lists all multidimensional subdatasets from the input HDF file. The name of individual images (subdatasets) are assigned to the SUBDATASET_n_NAME metadata item. The description for each image is found in the SUBDATASET_n_DESC metadata item. For HDF5 images the subdataset names will be formatted like this: HDF5:file_name:subdataset where: file_name is the name of the input file, and subdataset is the dataset name of the array to use (for internal use in GDAL). On the second step you should provide this name for gdalinfo or gdal_translate for actual reading of the data. For example, we want to read data from the OMI/Aura Ozone (O3) dataset: $ gdalinfo OMI-Aura_L2-OMTO3_2005m0326t2307-o03709_v002-2005m0428t201311.he5 Driver: HDF5/Hierarchical Data Format Release 5 Size is 512, 512 Coordinate System is `' Subdatasets: SUBDATASET_1_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/APrioriLayerO3 SUBDATASET_1_DESC=[1496x60x11] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/APrioriLayerO3 (32-bit floating-point) SUBDATASET_2_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/AlgorithmFlags SUBDATASET_2_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/AlgorithmFlags (8-bit unsigned character) SUBDATASET_3_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/CloudFraction SUBDATASET_3_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/CloudFraction (32-bit floating-point) SUBDATASET_4_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/CloudTopPressure SUBDATASET_4_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/CloudTopPressure (32-bit floating-point) SUBDATASET_5_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/ColumnAmountO3 SUBDATASET_5_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/ColumnAmountO3 (32-bit floating-point) SUBDATASET_6_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/LayerEfficiency SUBDATASET_6_DESC=[1496x60x11] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/LayerEfficiency (32-bit floating-point) SUBDATASET_7_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/NValue SUBDATASET_7_DESC=[1496x60x12] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/NValue (32-bit floating-point) SUBDATASET_8_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/O3BelowCloud SUBDATASET_8_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/O3BelowCloud (32-bit floating-point) SUBDATASET_9_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/QualityFlags SUBDATASET_9_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/QualityFlags (16-bit unsigned integer) SUBDATASET_10_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/Reflectivity331 SUBDATASET_10_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/Reflectivity331 (32-bit floating-point) SUBDATASET_11_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/Reflectivity360 SUBDATASET_11_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/Reflectivity360 (32-bit floating-point) SUBDATASET_12_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/Residual SUBDATASET_12_DESC=[1496x60x12] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/Residual (32-bit floating-point) SUBDATASET_13_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/ResidualStep1 SUBDATASET_13_DESC=[1496x60x12] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/ResidualStep1 (32-bit floating-point) SUBDATASET_14_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/ResidualStep2 SUBDATASET_14_DESC=[1496x60x12] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/ResidualStep2 (32-bit floating-point) SUBDATASET_15_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/SO2index SUBDATASET_15_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/SO2index (32-bit floating-point) SUBDATASET_16_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/Sensitivity SUBDATASET_16_DESC=[1496x60x12] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/Sensitivity (32-bit floating-point) SUBDATASET_17_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/StepOneO3 SUBDATASET_17_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/StepOneO3 (32-bit floating-point) SUBDATASET_18_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/StepTwoO3 SUBDATASET_18_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/StepTwoO3 (32-bit floating-point) SUBDATASET_19_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/TerrainPressure SUBDATASET_19_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/TerrainPressure (32-bit floating-point) SUBDATASET_20_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/UVAerosolIndex SUBDATASET_20_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/UVAerosolIndex (32-bit floating-point) SUBDATASET_21_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/dN_dR SUBDATASET_21_DESC=[1496x60x12] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/dN_dR (32-bit floating-point) SUBDATASET_22_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/dN_dT SUBDATASET_22_DESC=[1496x60x12] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Data_Fields/dN_dT (32-bit floating-point) SUBDATASET_23_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/GroundPixelQualityFlags SUBDATASET_23_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/GroundPixelQualityFlags (16-bit unsigned integer) SUBDATASET_24_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/Latitude SUBDATASET_24_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/Latitude (32-bit floating-point) SUBDATASET_25_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/Longitude SUBDATASET_25_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/Longitude (32-bit floating-point) SUBDATASET_26_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/RelativeAzimuthAngle SUBDATASET_26_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/RelativeAzimuthAngle (32-bit floating-point) SUBDATASET_27_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/SolarAzimuthAngle SUBDATASET_27_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/SolarAzimuthAngle (32-bit floating-point) SUBDATASET_28_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/SolarZenithAngle SUBDATASET_28_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/SolarZenithAngle (32-bit floating-point) SUBDATASET_29_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/TerrainHeight SUBDATASET_29_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/TerrainHeight (16-bit integer) SUBDATASET_30_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/ViewingAzimuthAngle SUBDATASET_30_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/ViewingAzimuthAngle (32-bit floating-point) SUBDATASET_31_NAME=HDF5:"OMI-Aura_L2-OMTO3_2005m0113t0224-o02648_v002-2005m0625t035355.he5"://HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/ViewingZenithAngle SUBDATASET_31_DESC=[1496x60] //HDFEOS/SWATHS/OMI_Column_Amount_O3/Geolocation_Fields/ViewingZenithAngle (32-bit floating-point) Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 512.0) Upper Right ( 512.0, 0.0) Lower Right ( 512.0, 512.0) Center ( 256.0, 256.0) Now select one of the subdatasets, described as [1645x60] CloudFraction (32-bit floating-point): $ gdalinfo HDF5:"OMI-Aura_L2-OMTO3_2005m0326t2307-o03709_v002-2005m0428t201311.he5":CloudFraction Driver: HDF5Image/HDF5 Dataset Size is 60, 1645 Coordinate System is: GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223563, AUTHORITY["EPSG","7030"]], TOWGS84[0,0,0,0,0,0,0], AUTHORITY["EPSG","6326"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9108"]], AXIS["Lat",NORTH], AXIS["Long",EAST], AUTHORITY["EPSG","4326"]] GCP Projection = GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0], AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY ["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9108"]], AXIS["Lat",NORTH],AXIS["Long",EAST],AUTHORITY["EPSG","4326"]] GCP[ 0]: Id=, Info= (0.5,0.5) -> (261.575,-84.3495,0) GCP[ 1]: Id=, Info= (2.5,0.5) -> (240.826,-85.9928,0) GCP[ 2]: Id=, Info= (4.5,0.5) -> (216.754,-86.5932,0) GCP[ 3]: Id=, Info= (6.5,0.5) -> (195.5,-86.5541,0) GCP[ 4]: Id=, Info= (8.5,0.5) -> (180.265,-86.2009,0) GCP[ 5]: Id=, Info= (10.5,0.5) -> (170.011,-85.7315,0) GCP[ 6]: Id=, Info= (12.5,0.5) -> (162.987,-85.2337,0) ... 3000 GCPs are read from the file if Latitude and Longitude arrays are presents Corner Coordinates: Upper Left ( 0.0, 0.0) Lower Left ( 0.0, 1645.0) Upper Right ( 60.0, 0.0) Lower Right ( 60.0, 1645.0) Center ( 30.0, 822.5) Band 1 Block=60x1 Type=Float32, ColorInterp=Undefined Open GDAL Datasets: 1 N DriverIsNULL 512x512x0 You may use gdal_translate for reading image bands from this dataset. Note that you should provide exactly the contents of the line marked SUBDATASET_n_NAME to GDAL, including the HDF5: prefix. This driver is intended only for importing remote sensing and geospatial datasets in form of raster images(2D or 3D arrays). If you want explore all data contained in HDF file you should use another tools (you can find information about different HDF tools using links at end of this page). Georeference There is no universal way of storing georeferencing in HDF files. However, some product types have mechanisms for saving georeferencing, and some of these are supported by GDAL. Currently supported are (subdataset_type shown in parenthesis): HDF5 OMI/Aura Ozone (O3) Total Column 1-Orbit L2 Swath 13x24km (Level-2 OMTO3) Metadata No Metadata are read at this time from the HDF5 files. Driver building This driver builded on top of NCSA HDF5 library, so you need to dowload prebuild HDF5 librariesI HDF5-1.6.4 library or higher. You also need zlib 1.2 and szlib 2.0. For windows user be sure to set the attributes writable (especialy if you are using cygwin) and that the DLLs can be located somewhere by your PATH environment variable. You may also download source code NCSA HDF Home Page (see links below). See Also: Implemented as gdal/frmts/hdf5/hdf5dataset.cpp and gdal/frmts/hdf5/hdf5imagedataset.cpp. The NCSA HDF5 Dowload Page at the National Center for Supercomputing Applications The HDFView is a visual tool for browsing and editing NCSA HDF4 and HDF5 files. Documentation to individual products, supported by this driver: Aura OMI Total Ozone Data Product-OMTO3 the next step is see what soft can read this type of format ...i seek and Global mapper can read this type of data...make the test for export in another format. 2 Quote Link to comment Share on other sites More sharing options...
Lurker Posted May 20, 2011 Report Share Posted May 20, 2011 nice one 3dbu really complete explanation Quote Link to comment Share on other sites More sharing options...
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