Ash Top Height Variable Comparison

report produced with glance, version 0.2.6.17
comparison generated Wed May 19 21:00:33 2010 by user wstraka on craackly.ssec.wisc.edu

file A:

path: /data/wstraka/PFAAST_CRTM/PFAAST//MSG8_SEVIRI_2006236_1600_00_AWG_VOLCANIC_ASH.nc
md5sum for file A: 67e86145380911c0a4f0d7687680ba33
last modified: Tue May 18 17:10:03 2010

file B:

path: /data/wstraka/PFAAST_CRTM/CRTM//MSG8_SEVIRI_2006236_1600_00_AWG_VOLCANIC_ASH.nc
md5sum for file B: c108ea81ed8c5b0aaf55fd84f7cf1795
last modified: Tue May 18 17:07:26 2010

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

latitude: Latitude
longitude: Longitude
longitude/latitude comparison epsilon: 0.01

Original Data

Comparison Information

variable name: Ash_Height
epsilon value: 0.01
"missing" data value in A: -999.0
"missing" data value in B: -999.0

Statistical Summary

Finite Data Statistics

a_finite_count*: 41368
a_finite_fraction*: 0.003002
b_finite_count*: 44613
b_finite_fraction*: 0.003238
common_finite_count*: 38507
common_finite_fraction*: 0.002795
finite_in_only_one_count*: 8967
finite_in_only_one_fraction*: 0.0006508

General Statistics

a_missing_value*: -999
b_missing_value*: -999
epsilon*: 0.01
max_a*: 1.719e+04
max_b*: 1.721e+04
min_a*: 90.61
min_b*: 123.8
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*: 10239453
a_missing_fraction*: 0.7431
b_missing_count*: 10236208
b_missing_fraction*: 0.7429
common_missing_count*: 10233347
common_missing_fraction*: 0.7427

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*: 0.9978
diff_outside_epsilon_count*: 38500
diff_outside_epsilon_fraction*: 0.9998
max_diff*: 3548
mean_diff*: 38.46
median_diff*: 19.17
perfect_match_count*: 3
perfect_match_fraction*: 7.791e-05
rms_diff*: 82.4
std_diff*: 72.88
trouble_points_count*: 47467
trouble_points_fraction*: 0.003445