GrADS Data Server - top level - gmao - geos-cf - v2 - ana - chm_inst_1hr_glo_L1440x721_v72

GrADS Data Server - info for /gmao/geos-cf/v2/ana/chm_inst_1hr_glo_L1440x721_v72 : dds  das


OPeNDAP/DODS Data URL: http://opendap.nccs.nasa.gov:80/dods/gmao/geos-cf/v2/ana/chm_inst_1hr_glo_L1440x721_v72

Description:
 GEOS-CF (Composition Forecast)
Documentation: (none provided)
Longitude:
-180.00000000000°E to 179.75000000000°E
  (1440 points, avg. res. 0.25°)
Latitude:
-90.00000000000°N to 90.00000000000°N
  (721 points, avg. res. 0.25°)
Altitude:
1.00000000000 to 72.00000000000
  (72 points, avg. res. 1.0)
Time:
10Z04AUG2025 to 09Z29NOV2025
  (2808 points, avg. res. 0.042 days)
Variables:
 (total of 11)
 
 bro
 bromine monoxide (bro, mw=95.9 g mol-1) mole fraction in dry air (mol mol-1)
 
 co
 carbon monoxide (co, mw=28.01 g mol-1) mole fraction in dry air (mol mol-1)
 
 glyx
 glyoxal (chocho, mw=58.04 g mol-1) mole fraction in dry air (mol mol-1)
 
 hcho
 formaldehyde (ch2o, mw=30.03 g mol-1) mole fraction in dry air (mol mol-1)
 
 hno3
 nitric acid (hno3, mw=63.01 g mol-1) mole fraction in dry air (mol mol-1)
 
 no
 nitrogen oxide (no, mw=30.01 g mol-1) mole fraction in dry air (mol mol-1)
 
 no2
 nitrogen dioxide (no2, mw=46.01 g mol-1) mole fraction in dry air (mol mol-1)
 
 noy
 total reactive oxidized nitrogen (gas+aerosol) mole fraction in dry air (mol mol-1)
 
 o3
 ozone (o3, mw=48.0 g mol-1) mole fraction in dry air (mol mol-1)
 
 pm25_rh35
 particulate matter with diameter less than 2.5 um mass at rh 35% (includes water) mass concentration in dry air (ug m-3)
 
 so2
 sulfur dioxide (so2, mw=64.04 g mol-1) mole fraction in dry air (mol mol-1)

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complete metadata listing:

Global attributes:

title: "GEOS-CF (Composition Forecast)"
Conventions: "COARDS"
"GrADS"
dataType: "Grid"
history: "Sat Nov 29 21:05:57 UTC 2025 : imported by GrADS Data Server 2.0"
extra_das_attribute: "This is an example of metadata added using a supplementary DAS file. See testdata/extra.das for the source."

Variables

bro: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "bromine monoxide (bro, mw=95.9 g mol-1) mole fraction in dry air (mol mol-1) "
bro: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "bromine monoxide (bro, mw=95.9 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
co: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "carbon monoxide (co, mw=28.01 g mol-1) mole fraction in dry air (mol mol-1) "
co: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "carbon monoxide (co, mw=28.01 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
glyx: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "glyoxal (chocho, mw=58.04 g mol-1) mole fraction in dry air (mol mol-1) "
glyx: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "glyoxal (chocho, mw=58.04 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
hcho: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "formaldehyde (ch2o, mw=30.03 g mol-1) mole fraction in dry air (mol mol-1) "
hcho: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "formaldehyde (ch2o, mw=30.03 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
hno3: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "nitric acid (hno3, mw=63.01 g mol-1) mole fraction in dry air (mol mol-1) "
hno3: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "nitric acid (hno3, mw=63.01 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
no: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "nitrogen oxide (no, mw=30.01 g mol-1) mole fraction in dry air (mol mol-1) "
no: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "nitrogen oxide (no, mw=30.01 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
no2: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "nitrogen dioxide (no2, mw=46.01 g mol-1) mole fraction in dry air (mol mol-1) "
no2: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "nitrogen dioxide (no2, mw=46.01 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
noy: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "total reactive oxidized nitrogen (gas+aerosol) mole fraction in dry air (mol mol-1) "
noy: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "total reactive oxidized nitrogen (gas+aerosol) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
o3: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "ozone (o3, mw=48.0 g mol-1) mole fraction in dry air (mol mol-1) "
o3: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "ozone (o3, mw=48.0 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
pm25_rh35: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "particulate matter with diameter less than 2.5 um mass at rh 35% (includes water) mass concentration in dry air (ug m-3) "
pm25_rh35: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "particulate matter with diameter less than 2.5 um mass at rh 35% (includes water) mass concentration in dry air (ug m-3) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
so2: Grid
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "sulfur dioxide (so2, mw=64.04 g mol-1) mole fraction in dry air (mol mol-1) "
so2: Array of 32 bit Reals [time = 0..2807][lev = 0..71][lat = 0..720][lon = 0..1439]
_FillValue: 1.0E15
missing_value: 1.0E15
long_name: "sulfur dioxide (so2, mw=64.04 g mol-1) mole fraction in dry air (mol mol-1) "
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25
time: Array of 64 bit Reals [time = 0..2807]
grads_dim: "t"
grads_mapping: "linear"
grads_size: "2808"
grads_min: "10z04aug2025"
grads_step: "60mn"
units: "days since 1-1-1 00:00:0.0"
long_name: "time"
minimum: "10z04aug2025"
maximum: "09z29nov2025"
resolution: 0.041666668
lev: Array of 64 bit Reals [lev = 0..71]
grads_dim: "z"
grads_mapping: "levels"
units: "millibar"
long_name: "altitude"
minimum: 1.00000000000
maximum: 72.00000000000
resolution: 1.0
lat: Array of 64 bit Reals [lat = 0..720]
grads_dim: "y"
grads_mapping: "linear"
grads_size: "721"
units: "degrees_north"
long_name: "latitude"
minimum: -90.00000000000
maximum: 90.00000000000
resolution: 0.25
lon: Array of 64 bit Reals [lon = 0..1439]
grads_dim: "x"
grads_mapping: "linear"
grads_size: "1440"
units: "degrees_east"
long_name: "longitude"
minimum: -180.00000000000
maximum: 179.75000000000
resolution: 0.25

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GrADS Data Server 2.0 (help using this server) . This page last updated 09Z 29 Nov 2025.