Dataset: ESA Aerosol Climate Change Initiative (Aerosol_cci): Level 2 aerosol products from AATSR (ORAC Algorithm), Version 4.01#
Dataset identifier: esacci.AEROSOL.satellite-orbit-frequency.L2P.AER_PRODUCTS.AATSR.Envisat.ORAC.04-01.r1
Data store: cciodp
How to open this dataset in AVL JupyterLab
cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.AEROSOL.satellite-orbit-frequency.L2P.AER_PRODUCTS.AATSR.Envisat.ORAC.04-01.r1')
Bounding box map#
cciodp_store = new_data_store('cciodp')
ds = cciodp_store.open_data('esacci.AEROSOL.satellite-orbit-frequency.L2P.AER_PRODUCTS.AATSR.Envisat.ORAC.04-01.r1')
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 | 2002-05-20 to 2012-04-08 |
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 |
|---|---|---|
| AOD550 | aerosol optical thickness at 550 nm | 1 |
| REFF | aerosol effective radius | microns |
| AOD670 | aerosol optical thickness at 670 nm | 1 |
| AOD870 | aerosol optical thickness at 870 nm | 1 |
| AOD1600 | aerosol optical thickness at 1600 nm | 1 |
| ANG550_870 | aerosol Angstrom exponent between 550 and 870 nm | 1 |
| FM_AOD550 | fine-mode aerosol optical thickness at 550 nm | 1 |
| D_AOD550 | dust aerosol optical thickness at 550 nm | 1 |
| AAOD550 | aerosol absorption optical thickness at 550 nm | 1 |
| surface_reflectance550 | Surface bihemispherical reflectance at 550 nm | 1 |
| surface_reflectance670 | Surface bihemispherical reflectance at 670 nm | 1 |
| surface_reflectance870 | Surface bihemispherical reflectance at 870 nm | 1 |
| surface_reflectance1600 | Surface bihemispherical reflectance at 1600 nm | 1 |
| AOD550_uncertainty | Uncertainty on AOT at 550 nm | 1 |
| REFF_uncertainty | Uncertainty on aerosol effective radius | microns |
| AOD870_uncertainty | Uncertainty on AOT at 870 nm | 1 |
| surface_reflectance550_uncertainty | Uncertainty on surface reflectance at 550 nm | 1 |
| surface_reflectance670_uncertainty | Uncertainty on surface reflectance at 670nm | 1 |
| surface_reflectance870_uncertainty | Uncertainty on surface reflectance at 870 nm | 1 |
| surface_reflectance1600_uncertainty | Uncertainty on surface reflectance at 1600 nm | 1 |
| sun_zenith_at_center | Solar zenith angle | degrees |
| satellite_zenith_at_center | Satellite zenith angle | degrees |
| relative_azimuth_at_center | Relative azimuth angle | degrees |
| aerosol_type | Best-guess aerosol type | 1 |
| quality_flag | Quality check results | 1 |
| cloud_fraction | Cloud fraction | 1 |
| surface_type_number | Land fraction | 1 |
| iterations | Retrieval iterations | 1 |
| fit_error | Cost function at solution | 1 |
| pixel_count | Number of level 1 pixels within 10km grid cell | 1 |
| data_count | Number of 1km retrievals within 10km grid cell | 1 |
Full variable metadata#
AOD550#
| Field | Value |
|---|---|
| long_name | aerosol optical thickness at 550 nm |
| standard_name | atmosphere_optical_thickness_due_to_aerosol |
| units | 1 |
| valid_range | 0.01, 5.01187 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
REFF#
| Field | Value |
|---|---|
| long_name | aerosol effective radius |
| units | microns |
| valid_range | 0.01, 10.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
AOD670#
| Field | Value |
|---|---|
| long_name | aerosol optical thickness at 670 nm |
| standard_name | atmosphere_optical_thickness_due_to_aerosol |
| units | 1 |
| valid_range | 0.01, 5.01187 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
AOD870#
| Field | Value |
|---|---|
| long_name | aerosol optical thickness at 870 nm |
| standard_name | atmosphere_optical_thickness_due_to_aerosol |
| units | 1 |
| valid_range | 0.01, 5.01187 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
AOD1600#
| Field | Value |
|---|---|
| long_name | aerosol optical thickness at 1600 nm |
| standard_name | atmosphere_optical_thickness_due_to_aerosol |
| units | 1 |
| valid_range | 0.01, 5.01187 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
ANG550_870#
| Field | Value |
|---|---|
| long_name | aerosol Angstrom exponent between 550 and 870 nm |
| standard_name | angstrom_exponent_of_ambient_aerosol_in_air |
| units | 1 |
| valid_range | 0.0, 4.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
FM_AOD550#
| Field | Value |
|---|---|
| long_name | fine-mode aerosol optical thickness at 550 nm |
| units | 1 |
| valid_range | 0.01, 5.01187 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
D_AOD550#
| Field | Value |
|---|---|
| long_name | dust aerosol optical thickness at 550 nm |
| units | 1 |
| valid_range | 0.01, 5.01187 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
AAOD550#
| Field | Value |
|---|---|
| long_name | aerosol absorption optical thickness at 550 nm |
| units | 1 |
| valid_range | 0.01, 5.01187 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_reflectance550#
| Field | Value |
|---|---|
| long_name | Surface bihemispherical reflectance at 550 nm |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_reflectance670#
| Field | Value |
|---|---|
| long_name | Surface bihemispherical reflectance at 670 nm |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_reflectance870#
| Field | Value |
|---|---|
| long_name | Surface bihemispherical reflectance at 870 nm |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_reflectance1600#
| Field | Value |
|---|---|
| long_name | Surface bihemispherical reflectance at 1600 nm |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
AOD550_uncertainty#
| Field | Value |
|---|---|
| long_name | Uncertainty on AOT at 550 nm |
| units | 1 |
| valid_range | 0.0, 1000.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
REFF_uncertainty#
| Field | Value |
|---|---|
| long_name | Uncertainty on aerosol effective radius |
| units | microns |
| valid_range | 0.0, 1000.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
AOD870_uncertainty#
| Field | Value |
|---|---|
| long_name | Uncertainty on AOT at 870 nm |
| units | 1 |
| valid_range | 0.0, 1000.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_reflectance550_uncertainty#
| Field | Value |
|---|---|
| long_name | Uncertainty on surface reflectance at 550 nm |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_reflectance670_uncertainty#
| Field | Value |
|---|---|
| long_name | Uncertainty on surface reflectance at 670nm |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_reflectance870_uncertainty#
| Field | Value |
|---|---|
| long_name | Uncertainty on surface reflectance at 870 nm |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_reflectance1600_uncertainty#
| Field | Value |
|---|---|
| long_name | Uncertainty on surface reflectance at 1600 nm |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
sun_zenith_at_center#
| Field | Value |
|---|---|
| long_name | Solar zenith angle |
| standard_name | solar_zenith_angle |
| units | degrees |
| valid_range | 0.0, 90.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 213308 |
| shape | 2, 106654 |
| chunk_sizes | 2, 106654 |
| file_chunk_sizes | 2, 106654 |
| data_type | float32 |
| dimensions | instrument_view, pixel_number |
| file_dimensions | instrument_view, pixel_number |
satellite_zenith_at_center#
| Field | Value |
|---|---|
| long_name | Satellite zenith angle |
| standard_name | zenith_angle |
| units | degrees |
| valid_range | 0.0, 90.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 213308 |
| shape | 2, 106654 |
| chunk_sizes | 2, 106654 |
| file_chunk_sizes | 2, 106654 |
| data_type | float32 |
| dimensions | instrument_view, pixel_number |
| file_dimensions | instrument_view, pixel_number |
relative_azimuth_at_center#
| Field | Value |
|---|---|
| long_name | Relative azimuth angle |
| units | degrees |
| valid_range | 0.0, 180.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 213308 |
| shape | 2, 106654 |
| chunk_sizes | 2, 106654 |
| file_chunk_sizes | 2, 106654 |
| data_type | float32 |
| dimensions | instrument_view, pixel_number |
| file_dimensions | instrument_view, pixel_number |
aerosol_type#
| Field | Value |
|---|---|
| _Unsigned | false |
| long_name | Best-guess aerosol type |
| units | 1 |
| valid_range | 0, 9 |
| flag_values | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 |
| flag_meanings | A70 A71 A72 A73 A74 A75 A76 A77 A78 A79 |
| coordinates | latitude longitude time |
| info | Best aerosol type, based on retrieval cost |
| orig_data_type | uint8 |
| fill_value | -1 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | uint8 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
quality_flag#
| Field | Value |
|---|---|
| long_name | Quality check results |
| units | 1 |
| valid_range | 0, 1023 |
| flag_masks | 1, 2, 4 |
| flag_meanings | retrieval_is_good ndata_less_than_5 st-dev_of_AOD550_greater_than_50% |
| coordinates | latitude longitude time |
| orig_data_type | int16 |
| fill_value | -999 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | int16 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
cloud_fraction#
| Field | Value |
|---|---|
| long_name | Cloud fraction |
| standard_name | cloud_area_fraction |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
surface_type_number#
| Field | Value |
|---|---|
| long_name | Land fraction |
| standard_name | land_area_fraction |
| units | 1 |
| valid_range | 0.0, 1.0 |
| coordinates | latitude longitude time |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
iterations#
| Field | Value |
|---|---|
| long_name | Retrieval iterations |
| units | 1 |
| valid_range | -1, 24 |
| coordinates | latitude longitude time |
| orig_data_type | int16 |
| fill_value | -999 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | int16 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
fit_error#
| Field | Value |
|---|---|
| valid_range | 0.0, 100000.0 |
| coordinates | latitude longitude time |
| long_name | Cost function at solution |
| units | 1 |
| orig_data_type | float32 |
| fill_value | -999.0 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | float32 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
pixel_count#
| Field | Value |
|---|---|
| long_name | Number of level 1 pixels within 10km grid cell |
| units | 1 |
| valid_range | 0, 110 |
| coordinates | latitude longitude time |
| orig_data_type | int16 |
| fill_value | -999 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | int16 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
data_count#
| Field | Value |
|---|---|
| long_name | Number of 1km retrievals within 10km grid cell |
| units | 1 |
| valid_range | 0, 110 |
| coordinates | latitude longitude time |
| orig_data_type | int16 |
| fill_value | -999 |
| size | 106654 |
| shape | 106654 |
| chunk_sizes | 106654 |
| file_chunk_sizes | 106654 |
| data_type | int16 |
| dimensions | pixel_number |
| file_dimensions | pixel_number |
Full dataset metadata#
| Field | Value |
|---|---|
| title | ESA Aerosol Climate Change Initiative (Aerosol_cci): Level 2 aerosol products from AATSR (ORAC Algorithm), Version 4.01 |
| product_version | 04-01 |
| project | Climate Change Initiative - European Space Agency |
| references | ftp://ftp.rsg.rl.ac.uk/aerosol_cci/Aerosol_cci_ORAC_ATBD_v2.0.pdf |
| institute | Rutherford Appleton Laboratory |
| source | AATSR L1b ver. 6.05 |
| history | 20160928101948 - Product generated from ORAC Revision: 4401. Data version AATSR L1b ver. 6.05 |
| ecv | AEROSOL |
| processing_level | L2P |
| product_string | ORAC |
| data_type | AER_PRODUCTS |
| sensor_id | AATSR |
| platform_id | Envisat |
| abstract | The ESA Climate Change Initiative Aerosol project has produced a number of global aerosol Essential Climate Variable (ECV) products from a set of European satellite instruments with different characteristics. This dataset comprises Level 2 aerosol products from the AATSR instrument on the ENVISAT satellite, derived using the ORAC algorithm, version 4.01. For further details about these data products please see the linked documentation. |
| publication_date | 2020-08-27T16:10:31 |
| uuid | 8b63d36f6f1e4efa8aea302b924bc46b |
| catalog_url | https://catalogue.ceda.ac.uk/uuid/8b63d36f6f1e4efa8aea302b924bc46b |
| cci_project | AEROSOL |