Published September 27, 2022 | Version 1.0
Dataset Open

Climate data Record of Stratospheric aerosols (CREST)

Creators

  • 1. Finnish Meteorological Institute

Contributors

Hosting institution:

Description

The Climate data REcord of STratospheric Aerosols (CREST) is derived from data by six limb and occultation satellite instruments: SAGE II on ERBS, GOMOS and SCIAMACHY on Envisat, OSIRIS on Odin, OMPS on Suomi-NPP, and SAGE III on International Space Station. The merged dataset was generated as a contribution to the European Space Agency project CREST (https://eo4society.esa.int/projects/crest/). The merging of aerosols profiles is performed by transformation the aerosol datasets from individual satellite instruments to the same wavelength, i.e., 750 nm, and their homogenization by adjusting the seasonal cycles. The merged aerosol extinction coefficient is computed as the median of the adjusted data from the individual instruments. The merged time series of monthly mean aerosol extinction vertical profiles at 750 nm is provided in 10 deg latitude bands from 90S to 90N, in the altitude range from 8.5 km to 39.5 km. The time series of stratospheric optical depth is created by integration of aerosol extinction profiles from the tropopause to 39.5 km; it is also provided as monthly mean data in 10 deg latitude bands. All the aerosol climate records cover the time period from October 1984 until May 2022, and they are intended be extended in the future.

Technical info

The data are collected in one netcdf-4 file.

Files

Files (3.4 MB)

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Checksum: md5:3fca62d512466f113772073dd3f914ff

PID: http://hdl.handle.net/11304/3efd140f-73a4-49b7-8a41-168af54037c6
3.4 MB Download

Additional details

Additional titles

Other
Merged aerosol extinction profiles and stratospheric optical depth dataset created using data from several satellite limb and occultation instruments

Identifiers

URL
https://etsin.fairdata.fi/dataset/210b3b11-31eb-4c0d-8edf-e4adc0a06eab
b2rec
8bfa485de30840eba42d1d407f4ce19c

Funding

European Space Agency
Climate Data Record of Stratospheric Aerosols (CREST)
Deutsche Forschungsgemeinschaft
project VolARC of the DFG research unit VolImpact FOR 2820 grant no. 398006378
The Academy of Finland
Centre of Excellence of Inverse Modelling and Imaging decision 336798

Instruments

SAGE II on ERBS
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SCIAMACHY on Envisat
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GOMOS on Envisat
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OSIRIS on Odin
undefined (Other)
OMPS-LP on Suomi-NPP
undefined (Other)
SAGE III on ISS
undefined (Other)

FMI metadata

Source data
Aerosol profiles: SAGE II NASA-V7.00, OSIRIS USask-V7.2, SCIAMACHY UBr-V3.0, GOMOS FMI-v1.0, OMPS_LP UBr-V1.2, SAGE III/ISS NASA-V5.2
Parameter
  • Parameter name: merged_aerosol_extinction
  • Parameter unit: 1/km
  • Parameter description: Merged profiles of aerosol extinction at 750 nm
  • Parameter name: SAOD
  • Parameter unit: dimensionless
  • Parameter description: stratospheric aerosol optical depth at 750 nm
  • Parameter name: Global_SAOD
  • Parameter unit: dimensionless
  • Parameter description: Area-weighted global mean stratospheric aerosol optical depth at 750 nm
Data levels (meter, hectoPascal, degree, sigma pressure levels, other) in vertical direction(+/-) for example 1500 m or 850 hPa
  • Level: km
Resolution
1
Topic category
climatologyMeteorologyAtmosphere

Temporal Coverage

Ranges:

Start date: 1984-09-30
End date: 2022-05-15