BT15 Variable Comparison

report produced with glance, version 0.2.6.24
comparison generated Fri Apr 22 21:22:10 2011 by user wstraka on craackly.ssec.wisc.edu

file A:

path: /data/wstraka/shanna_crtm/12_12/geocatRTM.Meteosat-9.2008237.140000.hdf
md5sum for file A: a139a64b1e0243a4ae20b4c5b27ad9c0
last modified: Fri Apr 22 21:07:52 2011

file B:

path: /data/wstraka/shanna_crtm/6_9/geocatRTM.Meteosat-9.2008237.140000.hdf
md5sum for file B: c8bee3dfe96ce5ca4ac202bce3446cc4
last modified: Fri Apr 22 21:08:04 2011

A configuration file was used to control the production report.
Please see this copy of the configuration file for details.

latitude: pixel_latitude
longitude: pixel_longitude
longitude/latitude comparison epsilon: 0.1

Original Data

Comparison Information

variable name: channel_15_brightness_temperature_clear
epsilon value: 0.1
"missing" data value in A: -32768
"missing" data value in B: -32768
units in A: K
units in B: K

Statistical Summary

Finite Data Statistics
a_finite_count*: 9902855
a_finite_fraction*: 0.7187
b_finite_count*: 9902642
b_finite_fraction*: 0.7187
common_finite_count*: 9902642
common_finite_fraction*: 0.7187
finite_in_only_one_count*: 213
finite_in_only_one_fraction*: 1.546e-05

General Statistics
a_missing_value*: -32768
b_missing_value*: -32768
epsilon*: 0.1
epsilon_percent*: None
max_a*: 313.6
max_b*: 317.6
min_a*: 247.4
min_b*: 243.8
num_data_points*: 13778944
shape*: (3712, 3712)
spatially_invalid_pts_ignored_in_a*: 3498123
spatially_invalid_pts_ignored_in_b*: 3498123

Missing Value Statistics
a_missing_count*: 377966
a_missing_fraction*: 0.02743
b_missing_count*: 378179
b_missing_fraction*: 0.02745
common_missing_count*: 377966
common_missing_fraction*: 0.02743

NaN Statistics
a_nan_count*: 0
a_nan_fraction*: 0
b_nan_count*: 0
b_nan_fraction*: 0
common_nan_count*: 0
common_nan_fraction*: 0

Numerical Comparison Statistics
correlation*: 0.9947
diff_outside_epsilon_count*: 7454257
diff_outside_epsilon_fraction*: 0.7528
max_diff*: 7.048
mean_diff*: 0.5412
median_diff*: 0.2776
perfect_match_count*: 32103
perfect_match_fraction*: 0.003242
r-squared correlation*: 0.9894
rms_diff*: 0.8908
std_diff*: 0.7076
trouble_points_count*: 7454470
trouble_points_fraction*: 0.541