50 MAS Configuration for 96-009 21 oct 95 ARESE flt #13 01 01 16 0 0 0 0.019596 0.0000 0.523 0.546 0.569 0 0.00 0.00 0.100 1863.54 02 02 16 0 0 0 0.022572 0.0000 0.627 0.653 0.680 0 0.00 0.00 0.100 1579.05 03 03 16 0 0 0 0.028612 0.0000 0.679 0.700 0.721 0 0.00 0.00 0.100 1420.76 04 04 16 0 0 0 0.030235 0.0000 0.720 0.741 0.762 0 0.00 0.00 0.100 1293.11 05 05 16 0 0 0 0.034661 0.0000 0.761 0.781 0.802 0 0.00 0.00 0.100 1185.36 06 06 16 0 0 0 0.039649 0.0000 0.802 0.823 0.844 0 0.00 0.00 0.100 1080.48 07 07 16 0 0 0 0.040520 0.0000 0.844 0.865 0.886 0 0.00 0.00 0.100 976.56 08 08 16 0 0 0 0.023922 0.0000 0.888 0.906 0.922 0 0.00 0.00 0.100 892.78 09 09 16 0 0 0 0.033972 0.0000 0.921 0.945 0.967 0 0.00 0.00 0.100 796.78 10 10 16 0 0 0 0.015899 0.0000 1.590 1.617 1.645 0 0.00 0.00 0.100 243.18 11 11 16 0 0 0 0.004791 0.0000 1.647 1.673 1.700 0 0.00 0.00 0.010 225.38 12 12 16 0 0 0 0.004349 0.0000 1.701 1.726 1.752 0 0.00 0.00 0.010 199.36 13 13 16 0 0 0 0.004155 0.0000 1.754 1.781 1.807 0 0.00 0.00 0.010 175.01 14 14 16 0 0 0 0.004140 0.0000 1.808 1.835 1.858 0 0.00 0.00 0.010 154.84 15 15 16 0 0 0 0.003835 0.0000 1.858 1.880 1.909 0 0.00 0.00 0.010 138.91 16 16 16 0 0 0 0.010201 0.0000 1.909 1.939 1.963 0 0.00 0.00 0.100 130.94 17 17 16 0 0 0 0.003280 0.0000 1.959 1.989 2.013 0 0.00 0.00 0.010 122.30 18 18 16 0 0 0 0.003251 0.0000 2.009 2.040 2.064 0 0.00 0.00 0.010 109.04 19 19 16 0 0 0 0.009066 0.0000 2.061 2.090 2.113 0 0.00 0.00 0.010 98.19 20 20 16 0 0 0 0.009365 0.0000 2.109 2.138 2.162 0 0.00 0.00 0.010 85.92 21 21 16 0 0 0 0.003578 0.0000 2.158 2.187 2.210 0 0.00 0.00 0.010 78.15 22 22 16 0 0 0 0.004086 0.0000 2.206 2.237 2.261 0 0.00 0.00 0.010 73.44 23 23 16 0 0 0 0.004523 0.0000 2.257 2.287 2.310 0 0.00 0.00 0.010 68.10 24 24 16 0 0 0 0.004710 0.0000 2.307 2.337 2.360 0 0.00 0.00 0.010 58.59 25 25 16 0 0 0 0.004991 0.0000 2.356 2.382 2.405 0 0.00 0.00 0.010 57.81 26 26 16 0 0 1 0.000000 0.0000 2.838 2.923 3.002 0 0.00 0.00 0.001 27.28 27 27 16 0 0 1 0.000000 0.0000 2.994 3.073 3.157 0 0.00 0.00 0.001 22.76 28 28 16 0 0 1 0.000000 0.0000 3.165 3.243 3.321 0 0.00 0.00 0.001 19.06 29 29 16 0 0 1 0.000000 0.0000 3.301 3.393 3.470 0 0.00 0.00 0.001 16.64 30 30 16 0 0 1 0.000000 0.0000 3.474 3.553 3.631 0 0.00 0.00 0.001 14.07 31 31 16 0 0 1 0.000000 0.0000 3.632 3.703 3.782 0 0.00 0.00 0.001 12.23 32 32 16 0 0 1 0.000000 0.0000 3.782 3.863 3.949 0 0.00 0.00 0.001 10.60 33 33 16 0 0 1 0.000000 0.0000 3.939 4.013 4.095 0 0.00 0.00 0.001 9.37 34 34 16 0 0 1 0.000000 0.0000 4.089 4.153 4.251 0 0.00 0.00 0.001 8.09 35 35 16 0 0 1 0.000000 0.0000 4.251 4.313 4.398 0 0.00 0.00 0.001 6.96 36 36 16 0 0 1 0.000000 0.0000 4.402 4.483 4.557 0 0.00 0.00 0.001 6.04 37 37 16 0 0 1 0.000000 0.0000 4.548 4.623 4.711 0 0.00 0.00 0.001 5.21 38 38 16 0 0 1 0.000000 0.0000 4.708 4.793 4.864 0 0.00 0.00 0.001 4.53 39 39 16 0 0 1 0.000000 0.0000 4.860 4.933 5.010 0 0.00 0.00 0.001 3.99 40 40 16 0 0 1 0.000000 0.0000 5.009 5.093 5.166 0 0.00 0.00 0.001 3.55 41 41 16 0 0 1 0.000000 0.0000 5.168 5.243 5.325 0 0.00 0.00 0.001 3.05 42 42 16 0 0 1 0.000000 0.0000 8.386 8.600 8.822 0 0.00 0.00 0.010 0.44 43 43 16 0 0 1 0.000000 0.0000 9.484 9.785 10.101 0 0.00 0.00 0.010 0.26 44 44 16 0 0 1 0.000000 0.0000 10.300 10.546 10.794 0 0.00 0.00 0.010 0.20 45 45 16 0 0 1 0.000000 0.0000 10.746 11.022 11.289 0 0.00 0.00 0.010 0.16 46 46 16 0 0 1 0.000000 0.0000 11.736 11.976 12.185 0 0.00 0.00 0.010 0.12 47 47 16 0 0 1 0.000000 0.0000 12.651 12.859 13.109 0 0.00 0.00 0.010 0.09 48 48 16 0 0 1 0.000000 0.0000 12.998 13.244 13.470 0 0.00 0.00 0.010 0.08 49 49 16 0 0 1 0.000000 0.0000 13.421 13.723 14.021 0 0.00 0.00 0.010 0.07 50 50 16 0 0 1 0.000000 0.0000 13.960 14.193 14.383 0 0.00 0.00 0.010 0.06 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | =(!) | | | | | | | | | | | | | | |= Factor | | | | | | | | | | | | | |= Coef # 2 | | | | | | | | | | | | |= Coef # 1 | | | | | | | | | | | |= # of Count adjust Coef | | | | | | | | | | |= Right 50% spectral response | | | | | | | | | |= Central spectral response (microns) | | | | | | | | |= Left 50% spectral response (microns) | | | | | | | =- Calibration intercept (only used for visible bands) | | | | | | =---------- Calibration slope (only used for visible bands) | | | | | =------------ 0 => visible band, 1 => thermal infrared band | | | | =-------------- Position of extra bits in bit bucket | | | =---------------- Number of channel used for bit bucket (if 10 bit) | | =------------------- Number of bits in this channel (8 or 10) | =---------------------- Spectral band assigned to this channel =------------------------- Channel number ******************************************************************************* (!) Sensor weighted solar spectral irradiance (Watts/meter2/micron) at mean Earth-Sun distance --- NOTE: Calibration technique was taken from : MODIS Airborne Simulator VIS and NIR Version 0.1 Calibration ARESE Field Experiment by Mike Fitzgerald (NASA/Ames) 20 December 1996 --- Conversion from counts to radiance in VIS and NIR channels is rad = (corrcount - (cbb_avg)) * slope where, rad = radiance cbb_avg = cold black body counts (running average) slope = from column 7 in above table corrcount = instrument-temperature corrected count the computation of corrcount is performed as follows corrcount = count + (count - cbbcount) * ( (tslope(channel)*temp) - (tslope(channel)*t0) / (tslope(channel)*t0 + toffset(channel)) where, count = the raw MAS count cbbcount = the cold black body count temp = the instrument temperature (Head2 Temperature) t0 = MAS lab calibration temp = 36.0 C (for ALASKA-April95) tslopes and toffsets are given in the table below ARESE Temperature Correction Coefs from T.Arnold 4/10/96 ch toffset tslope 01 11147.0 -3.29570 02 14890.0 0.21596 03 13816.0 1.39690 04 14150.0 4.34840 05 13262.0 8.26630 06 14240.0 8.33840 07 12825.0 0.16386 08 20243.0 -10.61900 09 15241.0 -5.24370 10 13894.0 -22.08500 11 26746.0 -32.07500 12 24310.0 -39.29500 13 27148.0 -42.96900 14 28754.0 -54.71800 15 26805.0 -48.86400 16 9717.7 -9.99810 17 21689.0 -21.71400 18 21074.0 -23.67200 19 8558.0 -8.53830 20 7108.7 -7.28860 21 12694.0 -19.69800 22 8147.2 -14.86500 23 5807.5 -5.68510 24 5741.5 -5.93820 25 5377.5 -6.97670 *********************************** IR Emissivity Correction (for MAS-50) From Chris Moeller (UWisc) *********************************** This is done in 2 steps: 1. Get the Channel 45 scan head count and convert it to a brightness temperature using the non-corrected calibr slope and intercept. 2. Call subroutine emisc.f (from ChrisM (UWisc)) which uses the chan45 scan head temperature for computing the corrected slope and intercept for all IR bands. Emissivities used were from Chris Moellers (UWisc) EMISC.F program BB effective emissivity estimates for all 50 channels (note: set to 1.0 for channels 1-25) For Bands 1 thru 50: 1.0,1.0,1.0,1.0,1.0, 1.0,1.0,1.0,1.0,1.0, 1.0,1.0,1.0,1.0,1.0, 1.0,1.0,1.0,1.0,1.0, 1.0,1.0,1.0,1.0,1.0, 0.98095, 0.98104, 0.98115, 0.98124, 0.98134, 0.98145, 0.98155, 0.98164, 0.98175, 0.98184, 0.98194, 0.98203, 0.98213, 0.98223, 0.98233, 0.98243, 0.94590, 0.94102, 0.93890, 0.93782, 0.93668, 0.93668, 0.93700, 0.93764, 0.93858 ************************* ************************* NOTE: Factor in column 15 is used to scale radiances in calibrated data by the following method: value_stored = int( radiance / factor ) for each channel --- Files and software modified by: Paul A. Hubanks MAS Level-1B Processing Manager (301) 982-3724 25 December 1996 *************************************************************** ***************************************************************