ESACCI_OZONE_L2_TC

Variables

The table below lists the variables that are present in the HARP product that results from an ingestion of ESACCI_OZONE_L2_TC data.

field name	type	dimensions	unit	description
scan_subindex	int32	{time}		zero-based index of the instantaneous field of view within the swath
datetime	double	{time}	[days since 1995-01-01]	time of the measurement
longitude	double	{time}	[degree_east]	longitude of the ground pixel center
latitude	double	{time}	[degree_north]	latitude of the ground pixel center
longitude_bounds	double	{time, 4}	[degree_east]	longitudes of the ground pixel corners
latitude_bounds	double	{time, 4}	[degree_north]	latitudes of the ground pixel corners
sensor_zenith_angle	double	{time}	[degree]	zenith angle of the sensor at the ground pixel center (< 0 for Eastern, > 0 for Western pixels)
solar_zenith_angle	double	{time}	[degree]	zenith angle of the Sun at the ground pixel center
relative_azimuth_angle	double	{time}	[degree]	relative azimuth angle at the ground pixel center
O3_column_number_density	double	{time}	[DU]	O3 total column number density
O3_column_number_density_uncertainty_random	double	{time}	[DU]	random uncertainty of the O3 total column number density
temperature	double	{time}	[K]	retrieved effective temperature
cloud_fraction	double	{time}	[]	effective cloud fraction
cloud_top_pressure	double	{time}	[Pa]	cloud top pressure
cloud_top_albedo	double	{time}	[]	effective cloud top albedo
scene_pressure	double	{time}	[Pa]	pressure at the effective scene used for the retrieval
scene_albedo	double	{time}	[]	retrieved effective albedo of the scene
surface_albedo	double	{time}	[]	minimum surface albedo at 335nm from OMI LER climatology
surface_altitude	double	{time}	[m]	surface altitude extracted from GTOPO30
pressure_bounds	double	{time, vertical, 2}	[Pa]	pressure at the boundaries of the layers used in the forward model
O3_column_number_density_avk	double	{time, vertical}	[]	averaging kernels in the layers of the forward model
O3_column_number_density_apriori	double	{time, vertical}	[DU]	a-priori partial ozone columns in the layers of the forward model
index	int32	{time}		zero-based index of the sample within the source product

Mapping description

The table below details where and how each variable was retrieved from the input product.

field name	mapping description
scan_subindex	path	/pixel_number[]
datetime	path	/time[]
longitude	path	/longitude[]
latitude	path	/latitude[]
longitude_bounds	path	/longitude_corner[]
latitude_bounds	path	/latitude_corner[]
sensor_zenith_angle	path	/viewing_zenith_angle[]
solar_zenith_angle	path	/solar_zenith_angle[]
relative_azimuth_angle	path	/relative_azimuth_angle[]
O3_column_number_density	path	/total_ozone_column[]
O3_column_number_density_uncertainty_random	path	/total_ozone_column_random_error[]
temperature	path	/effective_temperature[]
cloud_fraction	path	/cloud_fraction[]
cloud_top_pressure	path	/cloud_top_pressure[]
cloud_top_albedo	path	/cloud_albedo[]
scene_pressure	path	/effective_scene_pressure[]
scene_albedo	path	/effective_scene_albedo[]
surface_albedo	path	/surface_albedo[]
surface_altitude	path	/surface_altitude[]
pressure_bounds	path	/atmosphere_pressure_grid
	description	converted from pressure levels given at the boundaries between adjacent layers to a pair of pressures per layer (each pair consists of the pressure at the lower and at the upper boundary of a layer)
O3_column_number_density_avk	path	/averaging_kernels[]
O3_column_number_density_apriori	path	/apriori_ozone_profile[]