******************************************************************************** * * * Readme file for the CLAMS ER2 MAS Data Set * * * ******************************************************************************** 1.0 Introduction This file contains information about the sample read software and data files for the NASA ER2 Moderate Resolution Imaging Spectroradiometer (MODIS) Airborne Simulator (MAS). This software will read the data set: Chesapeake Lighthouse and Aircraft Measurements for Satellites (CLAMS_ER2_MAS) The CLAMS_ER2_MAS data files range in size from 8 Mbytes to 1.1 Gbytes. The data files are written in netCDF (Common Data Format). NCSA's (National Center for Supercomputing Applications) HDF (Hierarchical Data Format) libraries with the netCDF extensions are required to build the read software. These libraries can be obtained via anonymous ftp from ftp.ncsa.uiuc.edu or via the World Wide Web at http://hdf.ncsa.uiuc.edu. This readme file includes the following sections: Section 2.0 - Data Set Description Section 3.0 - Format and Packaging Section 4.0 - Science Parameters Information Section 5.0 - Description of Sample Read Software Section 6.0 - Implementing Sample Read Software Section 7.0 - Sample Output Section 8.0 - Additional Data Information If you have any questions, please contact the Langley ASDC User and Data Services Office at: Atmospheric Science Data Center User and Data Services Office Mail Stop 157D NASA Langley Research Center Hampton, Virginia 23681-2199 U.S.A. E-mail: support-asdc@earthdata.nasa.gov Phone: (757)864-8656 FAX: (757)864-8807 URL: http://eosweb.larc.nasa.gov 2.0 Data Set Description The MODIS Airborne Simulator (MAS) is an airborne scanning spectrometer that acquires high spatial resolution imagery of cloud and surface features from its vantage point on-board a NASA ER-2 high-altitude research aircraft. Data acquired by the MAS are helping to define, develop, and test algorithms for the Moderate Resolution Imaging Spectroradiometer (MODIS), a key sensor of NASA's Earth Observing System (EOS). The MODIS program will emphasize the use of remotely sensed data to monitor variation in environmental conditions for assessing both natural and human-induced global change. The MAS spectrometer acquires high spatial resolution imagery in the range of 0.55 to 14.3 microns. A total of 50 spectral bands are available in this range. Pre-1995 the digitizer was configured for each mission to record a pre-selected group of 12 bands during the flight. For most of these missions the digitizer was configured to record four 10-bit channels and seven 8-bit channels. A 50-channel digitizer which records all 50 spectral bands at 12 bit resolution became operational in January 1995. The MAS spectrometer is mated to a scanner sub-assembly which collects image data with an IFOV of 2.5 mrad, giving a ground resolution of 50 meters from 20000 meters altitude, and a cross track scan width of 85.92 degrees. For information about the CLAMS mission see: http://asapdata.arc.nasa.gov/CLAMS_home.html 2.1 Instrumentation Description For a description of the MODIS Aircraft Simulator see: http://ltpwww.gsfc.nasa.gov/MODIS/MAS/Home.html 2.2 Data Quality Note that spectral response curves used for processing raw MAS instrument counts to calibrated radiances were "atmospherically corrected" and smoothed. This atmospheric correction was done to the (approximate) 5 meter path between the source and the MAS instrument during the instrument's calibration. MAS calibrated radiances are not atmospherically corrected to account for atmospheric profiles, absorbing and emmitting gases, clouds, or aerosols in the sensor to Earth path. 2.3 Science Contact Questions pertaining to the data values contained within these files should be directed to: Michael Fitzgerald Airborne EOS Data Production Mgr. NASA Airborne Sensor Facility (SAIC) Ames Research Center Building 240, Room 219 Mail Stop 240-6 Moffett Field, CA 94035-1000 Office phone (650) 604 2872 Fax (650) 604 4987 E-mail mfitzgerald@mail.arc.nasa.gov 3.0 Format and Packaging The following files are defined for this distribution: Filename Format ---------------------- -------------------- clams_mas_read.c C Source Code clams_mas_read.f Fortan Source Code clams_mas_read_idl.pro IDL Source Code mas_constant.i Fortran Include File readme_clams_mas This readme file. Note: Both C and Fortran source code use the NCSA HDF libraries. The naming convention used for these files is: MASLLL_FFFFF_TT_YYYYMMDD_SSSS_EEEE_VNN.hdf where LLL - Data Product (e.g. L1B for level 1B) FFFFF - Flight Number TT - Track YYYY - Year MM - Month DD - Day SSSS - Start Time EEEE - End Time NN - Version For example: MASL1B_01141_18_20010924_0010_0037_V01.hdf This above example is for a Level 1B file on flight 01141 track 18 on September 24,2001 with a starting time of 00:10 and an ending time of 00:37 with a version 01. 4.0 Science Parameters Information For information about the MAS science parameters see: http://ltpwww.gsfc.nasa.gov/MODIS/MAS/masdug.html 5.0 Description of Sample Read Software There are three sample read programs developed for the CLAMS_ER2_MAS data set. One was written in the C programming language, another one was written in the Interactive Data Language (IDL) and the final one was written in Fortran. All programs have been tested on SGI under OS 6.5.11m. The IDL program was developed and tested using IDL 5.3 on an SGI system. Information about IDL can be obtained at the Research Systems, Inc. web site at: http://www.rsinc.com/ 5.1 The C Program The clams_mas_read.c program is meant to be an example program provided for the user's convenience. With minor modifications, the program can be compiled and executed on many different platforms. This read software is heavily based upon the NCSA distributed version of the netCDF utility "ncdump". In fact, the program should work for most, if not all, netCDF formatted files. Please see the program source code for copyright information. 5.2 The IDL Program The clams_mas_read_idl.pro program will read data from the input file and write it out in ASCII format to a file with the same name but with .rpt as the extension. Under Unix the user must have X-Windows running in order for the user interface to work properly. The user selects which file to use based on the selection chosen from a file dialog box. The application then prompts the user for global attributes and then for the selection of which data item(s) to dump to file. Special Note: Selecting a 0 will dump everything which will create a huge ASCII file. 5.3 The Fortran Program For the Fortran program two files are used to generate the Fortran read software: clams_mas_read.f and mas_constant.i. The Fortran read software is available at the Atmospheric Sciences Data Center or may be downloaded from the MAS URL at: http://ltpwww.gsfc.nasa.gov/MODIS/MAS/sw.html The clams_mas_read.f program is interactive in nature and allows the user to cycle through portions of the data file. Section 7.3 shows a sample session using this application. Also, there is a viewer for MAS Imagery called SHARP that is available at the following URL: http://cimss.ssec.wisc.edu/~gumley/sharp/sharp.html 6.0 Implementing Sample Read Software The following sections detail how to compile and link the various applications. 6.1 How to Compile the Sample Read Software The user can build the sample read program from the C or Fortran source files. 6.1.1 Compiling applications for SGI To build the executable for the SGI using the C source file at the UNIX commmand line prompt type: cc -64 -DNO_HAVE_PROTOTYPES -DNO_STDARG -o clams_mas_read_c -I/usr/lib/hdf41r2_64/include clams_mas_read.c -L/usr/lib/hdf41r2_64/lib -lmfhdf -ljpeg -ldf -lz -lm NOTE 1: The C compiler gives fifteen warnings that can be ignored. Also the linker gives two warnings about unused modules that also can be ignored. To build the executable for the SGI using the Fortran source files for the CLAMS_ER2_MAS data set, type: f77 -64 -DNO_HAVE_PROTOTYPES -DNO_STDARG -I/usr/lib/hdf41r2_64/include -o clams_mas_read_f clams_mas_read.f mas_constant.i -L/usr/lib/hdf41r2_64/lib -lmfhdf -ljpeg -ldf -lz -lm NOTE 2: The -I (include) and -L (library) hdf directory paths may differ on your system. Also the HDF libraries on your target machine may be 32 bit instead of 64 bit. NOTE 3: The include file mas_constant.i should be in the working directory. A warning is issued for line 55 of mas_constant.i for an unused variable. This does not effect the use of this program. NOTE 4: The linker gives three warnings that can be ignored. 6.1.2 Compiling programs for Sun 4 cc -DNO_HAVE_PROTOTYPES -DNO_STDARG clams_mas_read.c -g -I/usr/local/hdf/include -o clams_read_mas_c -L/usr/local/hdf/lib -lmfhdf -ldf -ljpeg -lz /usr/lib/libm.a f77 clams_mas_read.f -I/usr/local/hdf/include -o clams_mas_read_f -L/usr/local/HDF4.1r1/lib -lmfhdf -ldf -ljpeg -lz /usr/lib/libm.a 6.1.3 Compiling programs for HP cc -o clams_mas_read_c clams_mas_read.c -I/usr/local/hdf/include /usr/local/hdf/lib/libmfhdf.a /usr/local/hdf/lib/libdf.a /usr/local/hdf/lib/libjpeg.a /usr/local/hdf/lib/libz.a /usr/lib/libm.a f77 -O -o clams_mas_read_f clams_mas_read.f -I/usr/local/hdf/include /usr/local/hdf/lib/libmfhdf.a /usr/local/hdf/lib/libdf.a /usr/local/hdf/lib/libjpeg.a /usr/local/hdf/lib/libz.a /usr/lib/libm.a 6.2 How to Run the Sample Read Software This section illustrates the invocation of the various applications. 6.2.1 clams_mas_read_c Currently, the executable clams_mas_read_c program does not accept command line arguments. The output file name is automatically created by appending ".rpt" to the input file name. This code assumes that the data and code are located in the working directory. The report file generated will also be written to the working directory. After entering the filename, the user is presented with a parameter selection list. The user can select some of the parameters or all of the parameters to be written into the output file. At this point, the program generates the report file and exits. To begin program execution for the 'C' executable at the UNIX command line prompt, type : % clams_mas_read_c 6.2.2 clams_mas_read_idl The idl read software can be compiled and run through the IDL development environment. The idl read software can also be started by compiling and then executing the program. At the UNIX command line prompt, type: % idl IDL> clams_mas_read_idl 6.2.3 clams_mas_read_f Currently, the executable clams_mas_read_f program does not accept command line arguments. When the program is executed, it requests an input filename. An output filename is not automatically created. After entering the filename, the user must input a series of (carriage returns) or n - (no's) for a series of output requests. To begin program execution for the Fortran executable, at the UNIX command line prompt, type: % clams_mas_read_f A sample of the interactive program execution is provided in Section 7.3. 7.0 Sample Output The following sections detail the output of the read applications. 7.1 Output demonstration of the C sample read software. ------------------------------------------------------------------------------------- % clams_mas_read_c ***************************************************************** * * * * * CLAMS_ER2_MAS Read Software * * * * Version: 1.0 * * * * Date: May 2, 2002 * * * * Contact: Atmospheric Science Data Center * * User and Data Services Office * * Mail Stop 157D * * NASA Langley Research Center * * Hampton, Virginia 23681-2199 * * U.S.A. * * * * E-mail: support-asdc@earthdata.nasa.gov * * Phone: (757)864-8656 * * FAX: (757)864-8807 * * * ***************************************************************** This program reads CLAMS_ER2_MAS netCDF data. Please enter Q to Quit or C to continue c Please enter netCDF file name to read: MASL1B_01100_01_20010708_1630_1656_V01.hdf Report file name is: MASL1B_01100_01_20010708_1630_1656_V01.hdf.rpt Item Data Type Label(dimension lengths) ==== ========= ======================== 1 float Left50%ResponseWavelength(50) 2 float Central100%ResponseWavelength(50) 3 float Right50%ResponseWavelength(50) 4 float EffectiveCentralWavelength_IR_bands(50) 5 float TemperatureCorrectionSlope(50) 6 float TemperatureCorrectionIntercept(50) 7 float SolarSpectralIrradiance(50) 8 char DataSetHeader(129 X 80) 9 long ScanLineCounter(10000) 10 long GreenwichMeanTime(10000) 11 long YearMonthDay(10000) 12 short AircraftRollCount(10000) 13 short BlackBody1Temperature(10000) 14 short BlackBody2Temperature(10000) 15 float ScanRate(10000) Please choose the numbers of the data items you wish to dump Enter -1 to display additional items or zero to end selection process NOTE: if you enter 0 as very first entry, all variables will be displayed -1 Item Data Type Label(dimension lengths) ==== ========= ======================== 16 float ScanlineTime(10000) 17 float AircraftLatitude(10000) 18 float AircraftLongitude(10000) 19 float AircraftHeading(10000) 20 float AircraftAltitude(10000) 21 float AircraftPitch(10000) 22 float TBack(10000) 23 short AnalogGain(10000 X 50) 24 short AnalogOffset(10000 X 50) 25 short BlackBody1Counts(10000 X 50) 26 short BlackBody2Counts(10000 X 50) 27 short Head1Counts(10000 X 50) 28 short Head2Counts(10000 X 50) 29 float CalibrationSlope(10000 X 50) 30 float CalibrationIntercept(10000 X 50) Please choose the numbers of the data items you wish to dump Enter -1 to display additional items or zero to end selection process 25 0 Would you like the global attributes included in the report? (Y/N)y This is the report file for the MASL1B_01100_01_20010708_1630_1656_V01.hdf file ****************** START GLOBAL ATTRIBUTE SECTION ****************** CreationDate = 11-Oct-2001 16:16:38 AircraftPlatform = NASA ER-2 (806) NavFormatCode = Format (A-1) LocationCode = Inertial (INU) AltitudeCode = Inertial (INU) NavDataSource = ER2 navigation recorder NavDataPath = /nav/2001/er2/01-100 CalibrationName = CLAMS-2001_Jun26-Aug07 Reference = NCSA HDF Reference Manual, Version 4.1r4, 2000 title = MODIS Airborne Simulator (MAS) Level-1B Data ExperimentName = CLAMS-2001 FlightNumber = 01-100 FlightDate = 09 Jul 2001 SiteLineRun = void GeographicArea = CA / NV / AZ SRF_FTP = ftp://asapdata/mas/srf/Jun_01/ SRF_dataset = /rarray/calibrat/mas/srf/Jun_01/ FlightLineNumber = 1s TotalFlightLines = 11s DataUsersGuideSource = http://ltpww.gsfc.nasa.gov/MAS/ SoftwareVersion = Level-1b Version 10.0.1 UR CalibrationVersion = Version 1.0 Calibration data_set = MAS CLAMS-2001 day_night_flag = D granule_version = 1s metadata_version = 1.0.0 data_quality = Good Other_Aircraft_Sensors = void Principal_Investigator = Transit lat_UL = 35.271004f lon_UL = -115.09386f lat_UR = 35.555573f lon_UR = -115.21661f lat_LL = 36.137192f lon_LL = -111.75047f lat_LR = 36.450928f lon_LR = -111.83632f begin_date = 20010708 163005 end_date = 20010708 165652 RunTime = 1,030,979 ms, or 103 ms/scanline CompletionDate = 11-Oct-2001 17:08:09 producer_granule_id = MASL1B_01100_01_20010708_1630_1656_V01.hdf granule_size = 898367727 ****************** END GLOBAL ATTRIBUTE SECTION ****************** BlackBody1Counts 4966, 4952, 4955, 4962, 4962, 4963, 4970, 4970, 4988, 4745, 4728, 5716, 5817, 5711, 4701, 4721, 4557, 5587, 4715, 4783, 5691, 4950, 5066, 4432, 4311, 5367, 5253, 5525, 4208, 4341, 4064, 4053, 4041, 4116, 4725, 4186, 4113, 4174, 4583, 4000, -32229, 4722, 7587, 4565, 5053, 5317, 4869, 5518, 6335, 6746, ... Data continues on ... 5817, 5711, 4701, 4721, 4557, 5587, 4715, 4783, 5691, 4950, 5066, 4432, 4311, 5367, 5253, 5525, 4208, 4341, 4064, 4053, 4041, 4116, 4725, 4186, 4113, 4174, 4583, 4000, -32229, 4722, 7587, 4565, 5053, 5317, 4869, 5518, 6335, 6746, ------------------------------------------------------------------------------------- 7.2 Output demonstration of IDL sample read software ------------------------------------------------------------------------------------- % idl IDL Version 5.3 (IRIX mipseb). (c) 1999, Research Systems, Inc. Installation number: 17659. Licensed for use by: NASA - Langley Research Center IDL> clams_mas_read_idl % Compiled module: CLAMS_MAS_READ_IDL. % Compiled module: PICKFILE. % Loaded DLM: HDF. Valid HDF file. Opening "/fs2/clams/MASL1B_01100_01_20010708_1630_1656_V01.hdf" Report file is called /fs2/clams/MASL1B_01100_01_20010708_1630_1656_V01.hdf.rpt Do you want the global attributes printed to the output file? y Dataset No. 1: Left50%ResponseWavelength Dataset No. 2: Central100%ResponseWavelength Dataset No. 3: Right50%ResponseWavelength Dataset No. 4: EffectiveCentralWavelength_IR_bands Dataset No. 5: TemperatureCorrectionSlope Dataset No. 6: TemperatureCorrectionIntercept Dataset No. 7: SolarSpectralIrradiance Dataset No. 8: DataSetHeader Dataset No. 9: ScanLineCounter Dataset No. 10: GreenwichMeanTime Dataset No. 11: YearMonthDay Dataset No. 12: AircraftRollCount Dataset No. 13: BlackBody1Temperature Dataset No. 14: BlackBody2Temperature Dataset No. 15: ScanRate Dataset No. 16: ScanlineTime Dataset No. 17: AircraftLatitude Dataset No. 18: AircraftLongitude Dataset No. 19: AircraftHeading Dataset No. 20: AircraftAltitude Dataset No. 21: AircraftPitch Dataset No. 22: TBack Dataset No. 23: AnalogGain Dataset No. 24: AnalogOffset Dataset No. 25: BlackBody1Counts Dataset No. 26: BlackBody2Counts Dataset No. 27: Head1Counts Dataset No. 28: Head2Counts Dataset No. 29: CalibrationSlope Dataset No. 30: CalibrationIntercept Dataset No. 31: PixelLatitude Dataset No. 32: PixelLongitude Dataset No. 33: SensorZenithAngle Dataset No. 34: SensorAzimuthAngle Dataset No. 35: SolarZenithAngle Dataset No. 36: SolarAzimuthAngle Dataset No. 37: CalibratedData Enter 0 for all datasets to be displayed or 1 to select datasets: 1 Enter dataset no. then or zero to end selection process: 25 Enter dataset no. then or zero to end selection process: 0 Reading data for BlackBody1Counts Read operation complete. IDL> exit This is a report file for /fs2/clams/MASL1B_01100_01_20010708_1630_1656_V01.hdf Reading number of datasets and file attributes in file ... No. of Datasets: 37 No. of File Attributes: 43 No. of Palettes: 0 Printing name of each file attribute... File Attribute No. 0: CreationDate CreationDate 11-Oct-2001 16:16:38 File Attribute No. 1: AircraftPlatform AircraftPlatform NASA ER-2 (806) File Attribute No. 2: NavFormatCode NavFormatCode Format (A-1) File Attribute No. 3: LocationCode LocationCode Inertial (INU) File Attribute No. 4: AltitudeCode AltitudeCode Inertial (INU) File Attribute No. 5: NavDataSource NavDataSource ER2 navigation recorder File Attribute No. 6: NavDataPath NavDataPath /nav/2001/er2/01-100 File Attribute No. 7: CalibrationName CalibrationName CLAMS-2001_Jun26-Aug07 File Attribute No. 8: Reference Reference NCSA HDF Reference Manual, Version 4.1r4, 2000 File Attribute No. 9: title title MODIS Airborne Simulator (MAS) Level-1B Data File Attribute No. 10: ExperimentName ExperimentName CLAMS-2001 File Attribute No. 11: FlightNumber FlightNumber 01-100 File Attribute No. 12: FlightDate FlightDate 09 Jul 2001 File Attribute No. 13: SiteLineRun SiteLineRun void File Attribute No. 14: GeographicArea GeographicArea CA / NV / AZ File Attribute No. 15: SRF_FTP SRF_FTP ftp://asapdata/mas/srf/Jun_01/ File Attribute No. 16: SRF_dataset SRF_dataset /rarray/calibrat/mas/srf/Jun_01/ File Attribute No. 17: FlightLineNumber FlightLineNumber 1 File Attribute No. 18: TotalFlightLines TotalFlightLines 11 File Attribute No. 19: DataUsersGuideSource DataUsersGuideSource http://ltpww.gsfc.nasa.gov/MAS/ File Attribute No. 20: SoftwareVersion SoftwareVersion Level-1b Version 10.0.1 UR File Attribute No. 21: CalibrationVersion CalibrationVersion Version 1.0 Calibration File Attribute No. 22: data_set data_set MAS CLAMS-2001 File Attribute No. 23: day_night_flag day_night_flag D File Attribute No. 24: granule_version granule_version 1 File Attribute No. 25: metadata_version metadata_version 1.0.0 File Attribute No. 26: data_quality data_quality Good File Attribute No. 27: Other_Aircraft_Sensors Other_Aircraft_Sensors void File Attribute No. 28: Principal_Investigator Principal_Investigator Transit File Attribute No. 29: lat_UL lat_UL 35.2710 File Attribute No. 30: lon_UL lon_UL -115.094 File Attribute No. 31: lat_UR lat_UR 35.5556 File Attribute No. 32: lon_UR lon_UR -115.217 File Attribute No. 33: lat_LL lat_LL 36.1372 File Attribute No. 34: lon_LL lon_LL -111.750 File Attribute No. 35: lat_LR lat_LR 36.4509 File Attribute No. 36: lon_LR lon_LR -111.836 File Attribute No. 37: begin_date begin_date 20010708 163005 File Attribute No. 38: end_date end_date 20010708 165652 File Attribute No. 39: RunTime RunTime 1,030,979 ms, or 103 ms/scanline File Attribute No. 40: CompletionDate CompletionDate 11-Oct-2001 17:08:09 File Attribute No. 41: producer_granule_id producer_granule_id MASL1B_01100_01_20010708_1630_1656_V01.hdf File Attribute No. 42: granule_size granule_size 898367727 Dataset No. 24: BlackBody1Counts Number of attributes: 0 4966 4952 4955 4962 4962 4963 4970 4970 4988 4745 4728 5716 5817 5711 4701 4721 4557 5587 4715 4783 5691 4950 5066 4432 4311 5367 5253 5525 4208 4341 4064 4053 4041 4116 4725 4186 4113 4174 4583 4000 33307 4722 7587 4565 5053 5317 4869 5518 6335 6746 ... Data continues on ... 4974 4961 4969 4974 4980 4978 4989 4991 5022 5644 4637 5523 4578 4171 4113 4011 5546 4590 4785 3876 4226 4364 4532 4315 4308 4189 3881 4728 4288 3835 4474 3900 3997 4594 4272 4504 4266 4463 4919 4449 33306 5284 10774 5235 5346 5281 4893 4514 5546 6563 ------------------------------------------------------------------------------------- 7.3 Output demonstration of Fortran sample read software. Sample read software for clams_mas_read_f: ------------------------------------------------------------------------------------- % clams_mas_read_f WARNING: This version fixes a bug in HDF3.3r3 Enter HDF file name : MASL1B_01100_01_20010708_1630_1656_V01.hdf name=MASL1B_01100_01_20010708_1630_1656_V01.hdf HDF file id = 393216 # of Global Attributes = 43 # of Scientific Data Sets (SDS"s) = 37 Read Global Attributes ? ( or n ) : ******** GLOBAL ATTRIBUTE ********* Attribute_Name = CreationDate Attribute Index = 0 Number_Type = 4 Count = 20 - - - Attribute Value - - - 11-Oct-2001 16:16:38 ********************************** Continue ? ( or n ) : ******** GLOBAL ATTRIBUTE ********* Attribute_Name = AircraftPlatform Attribute Index = 1 Number_Type = 4 Count = 15 - - - Attribute Value - - - NASA ER-2 (806) ********************************** Continue ? ( or n ) : ******** GLOBAL ATTRIBUTE ********* Attribute_Name = NavFormatCode Attribute Index = 2 Number_Type = 4 Count = 12 - - - Attribute Value - - - Format (A-1) ********************************** Continue ? ( or n ) : ******** GLOBAL ATTRIBUTE ********* Attribute_Name = LocationCode Attribute Index = 3 Number_Type = 4 Count = 14 - - - Attribute Value - - - Inertial (INU) ********************************** Continue ? ( or n ) : ******** GLOBAL ATTRIBUTE ********* Attribute_Name = AltitudeCode Attribute Index = 4 Number_Type = 4 Count = 14 - - - Attribute Value - - - Inertial (INU) ********************************** Continue ? ( or n ) : ******** GLOBAL ATTRIBUTE ********* Attribute_Name = NavDataSource Attribute Index = 5 Number_Type = 4 Count = 23 - - - Attribute Value - - - ER2 navigation recorder ********************************** Continue ? ( or n ) : ******** GLOBAL ATTRIBUTE ********* Attribute_Name = NavDataPath Attribute Index = 6 Number_Type = 4 Count = 20 - - - Attribute Value - - - /nav/2001/er2/01-100 ********************************** Continue ? ( or n ) : ******** GLOBAL ATTRIBUTE ********* Attribute_Name = CalibrationName Attribute Index = 7 Number_Type = 4 Count = 22 - - - Attribute Value - - - CLAMS-2001_Jun26-Aug07 ********************************** Continue ? ( or n ) : n Read Scientific Data Set"s (SDS"s) ? ( or n) : ************* Scientific Data Set ************** SDS_Name = Left50%ResponseWavelength Index = 0 SDS_ID = 262144 # of Dims = 1 DimSizes = 50 0 0 0 0 Number_Type = 5 Number of Attributes = 1 - - - Sample Data Value - - - 0.513999999 - - - - - - - - - - - - - - - Read SDS attribute string ? ( or n ) : -------- Local Attribute ----------- Attribute_Name = units Attribute Index = 0 Number_Type = 4 Count = 7 - - - Attribute Value - - - microns -------------------------------------- ************************************************ Continue ? ( or n ) : ************* Scientific Data Set ************** SDS_Name = Central100%ResponseWavelength Index = 1 SDS_ID = 262145 # of Dims = 1 DimSizes = 50 0 0 0 0 Number_Type = 5 Number of Attributes = 1 - - - Sample Data Value - - - 0.533999979 - - - - - - - - - - - - - - - Read SDS attribute string ? ( or n ) : -------- Local Attribute ----------- Attribute_Name = units Attribute Index = 0 Number_Type = 4 Count = 7 - - - Attribute Value - - - microns -------------------------------------- ************************************************ Continue ? ( or n ) : n . . Output continues in this manner until all Scientific Data Sets are shown. . Dump Descaled Calibrated Radiances ? ( or n) : ************* Scientific Data Set ************** SDS_Name = CalibratedData Index = 36 SDS_ID = 262180 # of Dims = 3 DimSizes = 716 50 10000 0 0 Number_Type = 22 Number of Attributes = 2 -------- Local Attribute ----------- Attribute_Name = units Attribute Index = 0 Number_Type = 4 Count = 29 - - - Attribute Value - - - watts/meter2/steradian/micron -------- Local Attribute ----------- Attribute_Name = scale_factor Attribute Index = 1 Number_Type = 5 Count = 50 - - - Attribute Value - - - 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.10000 0.01000 0.01000 0.01000 0.01000 0.01000 0.10000 0.01000 0.01000 0.01000 0.01000 0.01000 0.01000 0.01000 0.01000 0.01000 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.00100 0.01000 0.01000 0.01000 0.01000 0.01000 0.01000 0.01000 0.01000 0.01000 Enter Pixel(1-716), Record(1- 10000), Channel(1-12) ? 5,10,7 At Pixel = 5 Record = 10 For Channel = 7 Stored Value = 778 Scale Factor = 0.100 Calibrated Radiance = 77.8000030518 Another ? ( or n ) : n ------------------------------------------------------------------------------------- 8.0 Additional Data Information King, M. D., W. P. Menzel, P. S. Grant, J. S. Myers, G. T. Arnold, S. E. Platnick, L. E. Gumley, S. C. Tsay, C. C. Moeller, M. Fitzgerald, K. S. Brown and F. G. Osterwisch, 1996: Airborne scanning spectrometer for remote sensing of cloud, aerosol, water vapor and surface properties. J. Atmos. Oceanic Technol., 13, 777-794. Last Updated: