OSIRIS_L2_NO2_MART
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of OSIRIS_L2_NO2_MART data.
field name |
type |
dimensions |
unit |
description |
|---|---|---|---|---|
datetime |
double |
{time} |
[seconds since 2000-01-01] |
time of the measurement |
latitude |
double |
{time} |
[degree_north] |
center latitude for a profile |
longitude |
double |
{time} |
[degree_east] |
center longitude for a profile |
altitude |
double |
{time, vertical} |
[km] |
altitude in km for each profile element |
no2_volume_mixing_ratio |
double |
{time, vertical} |
[ppmv] |
volume mixing ratio of NO2 |
no2_volume_mixing_ratio_uncertainty |
double |
{time, vertical} |
[ppmv] |
precision of the volume mixing ratio of NO2 |
no2_number_density |
double |
{time, vertical} |
[molec/cm3] |
NO2 number density |
solar_zenith_angle |
double |
{time} |
[degree] |
solar zenith angle at the tangent point of the measurement; 0 is sun overhead, 90 is sun on the horizon |
solar_azimuth_angle |
double |
{time} |
[degree] |
solar azimuth angle at the tangent point of the measurement; 0 is due North, 90 is due East, 180 is South and 270 is West |
index |
int32 |
{time} |
zero-based index of the sample within the source product |
Mapping description
OSIRIS Level 2 products only contain a single profile; all measured profile points will be provided in reverse order (from low altitude to high altitude) in the profile
The table below details where and how each variable was retrieved from the input product.
field name |
mapping description |
|
|---|---|---|
datetime |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Geolocation_Fields/Time[] |
description |
time converted from TAI93 to seconds since 2000-01-01 |
|
latitude |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Geolocation_Fields/Latitude[] |
longitude |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Geolocation_Fields/Longitude[] |
altitude |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Geolocation_Fields/Altitude[] |
description |
altitude information will be duplicated for each profile |
|
no2_volume_mixing_ratio |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Data_Fields/NO2[] |
description |
ppmv |
|
no2_volume_mixing_ratio_uncertainty |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Data_Fields/NO2Precision[] |
description |
ppmv |
|
no2_number_density |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Data_Fields/NO2NumberDensity[] |
solar_zenith_angle |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Geolocation_Fields/SolarZenithAngle[] |
solar_azimuth_angle |
path |
/HDFEOS/SWATHS/OSIRIS_Odin_NO2MART/Geolocation_Fields/SolarAzimuthAngle[] |