Retrieved MSR sensor data millivolt files can be processed by the POSTPROC program to calculate the corresponding percent reflectance values by applying temperature sensitivity corrections, up-sensor cosine response corrections, and calibration constants.

To POSTPROC an MSR .MV file, do the following:

1. Start the CROPSCAN MSR Software on your PC.

2. Select POSTPROC and press Enter.

3. Type a file name [eight (8) characters maximum]. If no extension is entered, .MV will be assummed. Press Enter.

   Example file name: mydata.mv

   The POSTPROC program supports merging plot experimental factor identifiers into the output reflectance file. This can help subsequent statistical analysis by having the factor identifiers in the same file as the reflectance data. Merging plot factors is optional. Mergeable plot factor files can be created using the FACTORID program. Refer to the MSR User's Manual and program help text for additional information. For this example, merging plot factors will not be done.

4. Type N and press Enter. Something similar to the following will be displayed.

   A progress bar is display to display the progression of processing. Being a data calculation intensive program, large MSR data files can cause POSTPROC to take several seconds to process, depending on the PC CPU speed.

   Any error condition detected will result in a message display, such as the over-range value message displayed above.

5. Press V to view the percent reflectance output file, mydata.rfl in this case.

   The navigational keys shown can be used to scroll up and down or left and right to view the entire output reflectance file.

   LOCATION................... ROC EXPERIMENT NUMBER.......... 537 RAW FILE................... MYDATA.MV PERCENT REFLECTANCE FILE... MYDATA.RFL CORRECTED MILLIVOLT FILE... MYDATA.CMV MSR#537 ---------------------------------------------------------------------------------------- DATE, TIME, ANG, IRR, PLOT, SS, 485, 560, 660, 830, 1650 ---------------------------------------------------------------------------------------- * 7/22/2000, 9:05:00, 44.9, 674, 1, 1, 100.38, 100.37, 100.36, 100.55, 100.36 7/22/2000, 9:05:02, 44.9, 673, 2, 1, 100.43, 100.44, 100.41, 100.66, 100.38 7/22/2000, 9:05:04, 44.9, 673, 3, 1, 100.36, 100.31, 100.43, 100.60, 100.28 7/22/2000, 9:05:06, 44.9, 671, 4, 1, 100.36, 100.40, 100.34, 100.60, 100.22 7/22/2000, 9:05:12, 44.9, 672, 5, 1, 93.45, 94.54, 95.25, 95.87, 92.69 7/22/2000, 9:05:14, 44.9, 671, 6, 1, 93.41, 94.61, 95.24, 95.65, 92.48 7/22/2000, 9:05:16, 44.9, 672, 7, 1, 93.48, 94.61, 95.20, 95.62, 92.48 7/22/2000, 9:05:18, 44.9, 672, 8, 1, 93.52, 94.67, 95.31, 95.54, 92.39 7/22/2000, 9:05:23, 44.9, 671, 9, 1, 4.84, 6.64, 80.86, 89.44, 72.74 7/22/2000, 9:05:27, 44.9, 669, 10, 1, 17.24, 18.44, 7.36, 19.38, 74.59 7/22/2000, 9:05:32, 44.9, 667, 11, 1, 24.01, 7.96, 7.16, 30.72, 55.13 7/22/2000, 9:05:37, 44.9, 665, 12, 1, 10.54, 11.20, 12.21, 15.75, 18.92 END

   The values displayed under the radiometer center-wavelength headers are the percent reflectance values.

When finished viewing the reflectance values, press the Esc key to return to the main CROPSCAN MSR Software Menu:

This completes the POSTPROC operation. At this point, the reflectance can be graphed or analyzed by importing the reflectance file into a spreadsheet program or processing it with other statistical analysis programs.

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