pixel_surface_elevation Variable Comparison

report produced with glance, version 0.2.6.13
comparison generated Mon Oct 26 23:54:26 2009 by user wstraka on craackly.ssec.wisc.edu

file A:

path: ./original/geocatNAV.Meteosat-8.xxxxxxx.000001.hdf
md5sum for file A: 90d125c6bd643b8948591580ee98b257
last modified: Mon Oct 26 21:08:28 2009

file B:

path: ./truth/geocatNAV.Meteosat-8.xxxxxxx.000001.hdf
md5sum for file B: 7e7c7e1bfc91097b602940d67e238e8b
last modified: Mon Oct 26 22:02:16 2009

latitude: pixel_latitude
longitude: pixel_longitude

WARNING: 10275746 data points (74.58% of all data) show possible mismatch in values stored in file a and file b longitude and latitude values. Depending on the degree of mismatch, some data value comparisons in this report may be distorted or spatially nonsensical. Please consider re-running this report and including an examination of your longitude and latitude variables with appropriate epsilons in order to analyze the significance of the difference.
View mismatching points in A's lon/lat system
View mismatching points in B's lon/lat system

Original Data

Comparison Information

variable name: pixel_surface_elevation
epsilon value: 2e-07
"missing" data value in A: -999.0
"missing" data value in B: -999.0

Statistical Summary

Finite Data Statistics
a_finite_count*: 10280909
a_finite_fraction*: 0.7461
b_finite_count*: 10280821
b_finite_fraction*: 0.7461
common_finite_count*: 10275746
common_finite_fraction*: 0.7458
finite_in_only_one_count*: 0
finite_in_only_one_fraction*: 0

General Statistics
a_missing_value*: -999
b_missing_value*: -999
epsilon*: 2e-07
max_a*: 6955
max_b*: 6541
min_a*: 0
min_b*: 0
num_data_points*: 13778944
shape*: (3712, 3712)
spatially_invalid_pts_ignored_in_a*: 3498035
spatially_invalid_pts_ignored_in_b*: 3498123

Missing Value Statistics
a_missing_count*: 0
a_missing_fraction*: 0
b_missing_count*: 0
b_missing_fraction*: 0
common_missing_count*: 0
common_missing_fraction*: 0

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*: 0.9856
diff_outside_epsilon_count*: 3716468
diff_outside_epsilon_fraction*: 0.3617
max_diff*: 4439
mean_diff*: 18.46
median_diff*: 0
perfect_match_count*: 6559278
perfect_match_fraction*: 0.6383
rms_diff*: 78.31
std_diff*: 74.68
trouble_points_count*: 3716468
trouble_points_fraction*: 0.2697