Ash Top Height Variable Comparison

report produced with glance, version 0.2.6.17
comparison generated Wed May 19 20:45:23 2010 by user wstraka on craackly.ssec.wisc.edu

file A:

path: /data/wstraka/PFAAST_CRTM/PFAAST//MSG8_SEVIRI_2006236_0600_00_AWG_VOLCANIC_ASH.nc
md5sum for file A: 514c9d1e0f1304645a389d64fe5adfbf
last modified: Tue May 18 16:37:56 2010

file B:

path: /data/wstraka/PFAAST_CRTM/CRTM//MSG8_SEVIRI_2006236_0600_00_AWG_VOLCANIC_ASH.nc
md5sum for file B: 762b183f0913b5f5508c496a503bb468
last modified: Tue May 18 16:39:32 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*: 14661
a_finite_fraction*: 0.001064
b_finite_count*: 18980
b_finite_fraction*: 0.001377
common_finite_count*: 11094
common_finite_fraction*: 0.0008051
finite_in_only_one_count*: 11453
finite_in_only_one_fraction*: 0.0008312

General Statistics

a_missing_value*: -999
b_missing_value*: -999
epsilon*: 0.01
max_a*: 1.834e+04
max_b*: 1.837e+04
min_a*: 301.5
min_b*: 239.2
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*: 10266160
a_missing_fraction*: 0.7451
b_missing_count*: 10261841
b_missing_fraction*: 0.7447
common_missing_count*: 10258274
common_missing_fraction*: 0.7445

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*: 0.9926
diff_outside_epsilon_count*: 11094
diff_outside_epsilon_fraction*: 1
max_diff*: 3837
mean_diff*: 88.49
median_diff*: 74.88
perfect_match_count*: 0
perfect_match_fraction*: 0
rms_diff*: 148.5
std_diff*: 119.3
trouble_points_count*: 22547
trouble_points_fraction*: 0.001636