Dataset: ESA Greenhouse Gases Climate Change Initiative (GHG CCI): Column-averaged CO2 from GOSAT generated with the OCFP (UoL-FP) algorithm (CO2_GOS_OCFP), v7.0

Dataset: ESA Greenhouse Gases Climate Change Initiative (GHG CCI): Column-averaged CO2 from GOSAT generated with the OCFP (UoL-FP) algorithm (CO2_GOS_OCFP), v7.0#

Dataset identifier: esacci.GHG.satellite-orbit-frequency.L2.CO2.TANSO-FTS.GOSAT.OCFP.v7-0-1.r1
Data store: cciodp

How to open this dataset in AVL JupyterLab

cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.GHG.satellite-orbit-frequency.L2.CO2.TANSO-FTS.GOSAT.OCFP.v7-0-1.r1')

Bounding box map#

Bounding box map
Map tiles and data from OpenStreetMap, under the ODbL.

Basic information#

Parameter	Value
Bounding box longitude (°)	-180.0 to 180.0
Bounding box latitude (°)	-90.0 to 90.0
Time range	2009-04-17 to 2015-12-31

Click here for full dataset metadata.

Variable list#

Click on a variable name to jump to the variable’s full metadata.

Variable	Long name	Units
xco2_averaging_kernel	xco2_averaging_kernel	1
surface_air_pressure_apriori_std	surface_air_pressure_apriori_std	hPa
pressure_weight	pressure_weight	1
xco2_uncertainty	xco2_uncertainty	1e-6
pressure_levels	pressure_levels	hPa
solar_zenith_angle	solar_zenith_angle	degree
xco2_no_bias_correction	xco2_no_bias_correction	1e-6
surface_air_pressure_apriori	surface_air_pressure_apriori	hPa
surface_altitude	surface_altitude	m
air_temperature_apriori	air_temperature_apriori	K
gain	gain	1
h2o_profile_apriori	h2o_profile_apriori	1e-6
retr_flag	retr_flag	1
total_aod	total_aod	1
xco2_quality_flag	xco2_quality_flag	1
surface_altitude_stdev	surface_altitude_stdev	m
xco2	xco2	1e-6
sensor_zenith_angle	sensor_zenith_angle	degree
cirrus	cirrus	1
aod_type1	aod_type1	1
co2_profile_apriori	co2_profile_apriori	1e-6
aod_type2	aod_type2	1

Full variable metadata#

xco2_averaging_kernel#

Field	Value
units	1
short_description	XCO2 averaging kernel (a profile = vector for each single observation). Quantifies the altitude sensitivity of the XCO2 retrieval.
long_name	xco2_averaging_kernel
orig_data_type	float32
fill_value	None
size	15180
shape	759, 20
chunk_sizes	759, 20
file_chunk_sizes	759, 20
data_type	float32
dimensions	n, m
file_dimensions	n, m

surface_air_pressure_apriori_std#

Field	Value
long_name	surface_air_pressure_apriori_std
units	hPa
short_description	a priori surface pressure standard deviation
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

pressure_weight#

Field	Value
short_description	Pressure weights as used for averaging kernels
units	1
long_name	pressure_weight
orig_data_type	float32
fill_value	None
size	15180
shape	759, 20
chunk_sizes	759, 20
file_chunk_sizes	759, 20
data_type	float32
dimensions	n, m
file_dimensions	n, m

xco2_uncertainty#

Field	Value
long_name	xco2_uncertainty
units	1e-6
short_description	Statistical uncertainty of XCO2 in ppm (1-sigma).
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

pressure_levels#

Field	Value
units	hPa
short_description	Vertical altitude coordinate in pressure units as used for averaging kernels
long_name	pressure_levels
orig_data_type	float32
fill_value	None
size	15180
shape	759, 20
chunk_sizes	759, 20
file_chunk_sizes	759, 20
data_type	float32
dimensions	n, m
file_dimensions	n, m

solar_zenith_angle#

Field	Value
short_description	Solar zenith angle is the the angle between the line of sight to the sun and the local vertical.
units	degree
long_name	solar_zenith_angle
standard_name	solar_zenith_angle
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

xco2_no_bias_correction#

Field	Value
long_name	xco2_no_bias_correction
units	1e-6
short_description	Retrieved column-averaged dry-air mole fraction of atmospheric carbon dioxide (XCO2) in ppm. No bias correction applied.
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

surface_air_pressure_apriori#

Field	Value
long_name	surface_air_pressure_apriori
units	hPa
short_description	a priori surface pressure value
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

surface_altitude#

Field	Value
short_description	Altitude is the (geometric) height above the geoid, which is the reference geopotential surface.
units	m
long_name	surface_altitude
standard_name	surface_altitude
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

air_temperature_apriori#

Field	Value
short_description	Air temperature is the bulk temperature of the air, not the surface (skin) temperature.
units	K
long_name	air_temperature_apriori
orig_data_type	float32
fill_value	None
size	15180
shape	759, 20
chunk_sizes	759, 20
file_chunk_sizes	759, 20
data_type	float32
dimensions	n, m
file_dimensions	n, m

gain#

Field	Value
_Unsigned	false
short_description	GOSAT TANSO-FTS instrument gain mode. 0 indicates high gain. 1 indicates medium gain.
long_name	gain
units	1
orig_data_type	uint8
fill_value	65535
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	uint16
dimensions	n
file_dimensions	n

h2o_profile_apriori#

Field	Value
short_description	A priori mole fraction profile of atmospheric H2O in ppm.
units	1e-6
long_name	h2o_profile_apriori
orig_data_type	float32
fill_value	None
size	15180
shape	759, 20
chunk_sizes	759, 20
file_chunk_sizes	759, 20
data_type	float32
dimensions	n, m
file_dimensions	n, m

retr_flag#

Field	Value
_Unsigned	false
short_description	Retrieval type flag (0 = land, 1 = glint).
long_name	retr_flag
units	1
orig_data_type	uint8
fill_value	65535
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	uint16
dimensions	n
file_dimensions	n

total_aod#

Field	Value
long_name	total_aod
units	1
short_description	Total aerosol and cirrus optical depth
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

xco2_quality_flag#

Field	Value
_Unsigned	false
long_name	xco2_quality_flag
units	1
short_description	good_quality potentially_bad_quality: 0=good, 1=bad
orig_data_type	uint8
fill_value	65535
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	uint16
dimensions	n
file_dimensions	n

surface_altitude_stdev#

Field	Value
short_description	Standard deviation of the surface elevation within the area of the GOSAT sounding, as derived from the SRTM database.
long_name	surface_altitude_stdev
units	m
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

xco2#

Field	Value
long_name	xco2
standard_name	dry_atmosphere_mole_fraction_of_carbon_dioxide
units	1e-6
short_description	Retrieved column-averaged dry-air mole fraction of atmospheric carbon dioxide (XCO2) in ppm.
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

sensor_zenith_angle#

Field	Value
long_name	sensor_zenith_angle
standard_name	sensor_zenith_angle
units	degree
short_description	Sensor zenith angle is the angle between the line of sight to the sensor and the local vertical.
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

cirrus#

Field	Value
units	1
short_description	Total cirrus optical depth
long_name	cirrus
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

aod_type1#

Field	Value
short_description	Total aerosol optical depth for type 1
long_name	aod_type1
units	1
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

co2_profile_apriori#

Field	Value
short_description	A priori mole fraction profile of atmospheric CO2 in ppm.
long_name	co2_profile_apriori
units	1e-6
orig_data_type	float32
fill_value	None
size	15180
shape	759, 20
chunk_sizes	759, 20
file_chunk_sizes	759, 20
data_type	float32
dimensions	n, m
file_dimensions	n, m

aod_type2#

Field	Value
units	1
short_description	Total aerosol optical depth for type 2
long_name	aod_type2
orig_data_type	float32
fill_value	None
size	759
shape	759
chunk_sizes	759
file_chunk_sizes	759
data_type	float32
dimensions	n
file_dimensions	n

Full dataset metadata#

Field	Value
title	ESA Greenhouse Gases Climate Change Initiative (GHG CCI): Column-averaged CO2 from GOSAT generated with the OCFP (UoL-FP) algorithm (CO2_GOS_OCFP), v7.0
source	GOSAT L1B version v201
references	http://www.esa-ghg-cci.org/ http://dx.doi.org/10.1029/2006JD007080 , http://dx.doi.org/10.1029/2006JD008336
product_version	v7-0-1
comment	These data were produced at the Univeristy of Leicester in the frame of the ESA GHG CCI project
project	Climate Change Initiative - European Space Agency
ecv	GHG
institute	University of Leicester
processing_level	L2
product_string	OCFP
data_type	CO2
sensor_id	TANSO-FTS
platform_id	GOSAT
abstract	The CO2_GOS_OCFP dataset comprises level 2, column-averaged dry-air mole fractions (mixing ratios) of carbon dioxide (XCO2) from the Thermal and Near Infrared Sensor for Carbon Observations (TANSO-FTS) NIR and SWIR spectra, onboard the Japanese Greenhouse gases Observing Satellite (GOSAT). It has been produced using the University of Leicester Full-Physics Retrieval Algorithm, which is based on the original Orbiting Carbon Observatory (OCO) Full Physics Retrieval Algorithm and modified for use on GOSAT spectra. A second product, generated using the alternative SRFP algorithm, is also available. The OCFP product is considered the GHG_cci baseline product and it is advised that users who aren't sure which of the two products to use, use this product. For more information regarding the differences between baseline and alternative algorithms please see the Greenhouse Gases CCI data products webpage. The XCO2 product is stored in NetCDF format with all GOSAT soundings on a single day stored in one file. For further information, including details of the OCFP algorithm and the TANSO-FTS instrument, please see the associated product user guide (PUG).
publication_date	2018-03-19T20:57:12
uuid	9255faeb392f41debf5402caa40dada8
catalog_url	https://catalogue.ceda.ac.uk/uuid/9255faeb392f41debf5402caa40dada8
cci_project	GHG