File Comparison Summary

report produced with glance, version 0.3.5
analysis generated Mon Oct 27 21:33:44 2025 by user ec2-user on ip-10-170-89-51.ec2.internal

File A:

path: /home/ec2-user/environment/comparison-tools/HDF_netCDF_files/glance/tmpo_pm25_assist_python312_flattened.nc
md5sum for File A: 90d349843ddf895bf6764ac62411a961
last modified: Mon Oct 27 21:31:17 2025

File B:

path: /home/ec2-user/environment/comparison-tools/HDF_netCDF_files/glance/tmpo_pm25_science_python309_flattened.nc
md5sum for File B: 90d349843ddf895bf6764ac62411a961
last modified: Mon Oct 27 21:31:52 2025

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

Compared Variables

Variable: geolocation__lat_ge
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: geolocation__lat_gw
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: geolocation__lon_ge
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: geolocation__lon_gw
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: product__pm25sat_ge
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: product__pm25sat_gw
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: support_data__tempo_alh_ge
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: support_data__tempo_alh_gw
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: support_data__tempo_aod_ge
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: support_data__tempo_aod_gw
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: xdim_ge
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: xdim_gw
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: ydim_ge
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Variable: ydim_gw
Epsilon used: 0.0
Finite values within one epsilon of difference: 100%
Data that matched in finite-ness between the files: 100%

Shared Variables

The following variables were common to both files:

geolocation__lat_ge
geolocation__lat_gw
geolocation__lon_ge
geolocation__lon_gw
product__pm25sat_ge
product__pm25sat_gw
support_data__tempo_alh_ge
support_data__tempo_alh_gw
support_data__tempo_aod_ge
support_data__tempo_aod_gw
xdim_ge
xdim_gw
ydim_ge
ydim_gw

Global Attributes

Attribute Name	File A Value	File B Value
algorithm_version	2	2
collection_shortname	TEMPO_PM25_L4	TEMPO_PM25_L4
collection_version	1	1
conventions	CF-1.6, ACDD-1.3	CF-1.6, ACDD-1.3
creator_url	https://www.star.nesdis.noaa.gov/star/index.php	https://www.star.nesdis.noaa.gov/star/index.php
day_of_year	219	219
geospatial_bounds	POLYGON((55.6385 -130.4592,22.9194 -133.2533,23.4860 -106.0024,14.9399 -105.9917,14.5713 -75.0093,14.6384 -61.9096,51.3645 -52.9468,51.9660 -105.9722,56.9487 -106.0031,55.6385 -130.4592))	POLYGON((55.6385 -130.4592,22.9194 -133.2533,23.4860 -106.0024,14.9399 -105.9917,14.5713 -75.0093,14.6384 -61.9096,51.3645 -52.9468,51.9660 -105.9722,56.9487 -106.0031,55.6385 -130.4592))
geospatial_bounds_crs	EPSG:4326	EPSG:4326
geospatial_lat_max	56.9487	56.9487
geospatial_lat_min	14.5713	14.5713
geospatial_lon_max	-52.9468	-52.9468
geospatial_lon_min	-133.2533	-133.2533
institution	NOAA/NESDIS/STAR	NOAA/NESDIS/STAR
keywords	EARTH SCIENCE>ATMOSPHERE>AIR QUALITY>PM2.5	EARTH SCIENCE>ATMOSPHERE>AIR QUALITY>PM2.5
platform	Intelsat 40e	Intelsat 40e
processing_level	4	4
processing_version	3	3
product_type	PM25	PM25
production_date_time	2025-10-27T16:02:28.638Z	2025-10-27T16:02:28.638Z
project	TEMPO	TEMPO
source	UV-VIS hyperspectral imaging	UV-VIS hyperspectral imaging
summary	Surface concentrations of particulate matter with a median diameter of 2.5 µm or less (PM2.5) is estimated over the Continental United States (CONUS) using TEMPO-derived aerosol optical depth (AOD) and aerosol layer height (ALH) through a geographically weighted regression (GWR) algorithm. The regression model's parameters are dynamically updated hourly using surface PM2.5 concentration measurements and satellite-retrieved AOD and ALH data. For further details, please refer to the User's Guide.	Surface concentrations of particulate matter with a median diameter of 2.5 µm or less (PM2.5) is estimated over the Continental United States (CONUS) using TEMPO-derived aerosol optical depth (AOD) and aerosol layer height (ALH) through a geographically weighted regression (GWR) algorithm. The regression model's parameters are dynamically updated hourly using surface PM2.5 concentration measurements and satellite-retrieved AOD and ALH data. For further details, please refer to the User's Guide.
time_coverage_end	2025-08-07T17:59:59Z	2025-08-07T17:59:59Z
time_coverage_end_since_epoch	1438624799.0	1438624799.0
time_coverage_start	2025-08-07T17:00:00Z	2025-08-07T17:00:00Z
time_coverage_start_since_epoch	1438621200.0	1438621200.0
time_reference	1980-01-06T00:00:00Z	1980-01-06T00:00:00Z
title	PM2.5 estimates using TEMPO aerosol retrievals	PM2.5 estimates using TEMPO aerosol retrievals
version_id	3	3

	Variable: geolocation__lat_ge Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: geolocation__lat_gw Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: geolocation__lon_ge Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: geolocation__lon_gw Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: product__pm25sat_ge Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: product__pm25sat_gw Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: support_data__tempo_alh_ge Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: support_data__tempo_alh_gw Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: support_data__tempo_aod_ge Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: support_data__tempo_aod_gw Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: xdim_ge Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: xdim_gw Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: ydim_ge Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%
	Variable: ydim_gw Epsilon used: 0.0 Finite values within one epsilon of difference: 100% Data that matched in finite-ness between the files: 100%