This website uses cookies. By continuing to use this website you are agreeing to our use of cookies. 

Dataset

 
National Centre for Earth Observation (NCEO) Logo

Processed ATSR-2/AATSR data for the production of GRAPE (1995-2009)

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2007-02-16
Download Stats: last 12 months

Abstract

The aim of the GRAPE project was to produce a global cloud and aerosol dataset using a state-of-the-art physical retrieval of the entire duration of the Along Track Scanning Radiometer 2 (ATSR-2) mission (aboard ERS-2). This dataset will be compared and contrasted with existing climatologies (based on different instruments and very different retrieval algorithms). The GRAPE project was initially funded through the Clouds, Water Vapour and Climate (CWVC) Programme, a five-year NERC directed research programme. The dataset has been developed further within the National Centre for Earth Observation (NCEO) and now includes data from the Advanced Along Track Scanning Radiometer (AATSR). The GRAPE dataset contains cloud optical depth, aerosol optical depth (cloud free), cloud phase, cloud particle size, cloud top pressure, cloud fraction and cloud ice/water path along with associated error measurements. Data spans the period 1995 to 2009 (v2 covers 1995-2001, v3 covers 1995-2009).

Citable as:  Poulsen, C.A.; Dean, S. (2007): Processed ATSR-2/AATSR data for the production of GRAPE (1995-2009). NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/ad2828e7db3436964ed900d8974bd2e8
Abbreviation: CWVC-GRAPE
Keywords: CWVC, GRAPE, ATSR, CLOUDS, ATMOSPHERE

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__dep_11716103594215045
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data supplied as is to the BADC by the Oxford Physics Department.

Data Quality:
Data quality controlled by the GRAPE team at the University of Oxford.
File Format:
Version 2 data is held in HDF format. Version 3 data is held in NetCDF.

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Mobile platform operations

Mobile Platform Operation 1 Mobile Platform Operation for: Envisat
Mobile Platform Operation 2 Mobile Platform Operation for: European Remote Sensing satellite 2 (ERS-2)

Computation Element: 1

Title Satellite deployed on Envisat
Abstract Envisat.
Input Description None
Output Description None
Software Reference None

Computation Element: 2

Title Deployed on European Remote Sensing satellite 2 (ERS-2)
Abstract This computation involved: deployed on European Remote Sensing satellite 2 (ERS-2).
Input Description None
Output Description None
Software Reference None
Output Description None
  • long_name: Cloud Amount
  • var_id: a_CA
  • units: 1
  • standard_name: cloud_area_fraction
  • names: cloud_area_fraction, Cloud Amount
  • long_name: Cloud Amount PDF
  • var_id: h_CA
  • units: 1
  • names: Cloud Amount PDF
  • long_name: Cloud Amount bin centres
  • var_id: bin
  • units: 1
  • names: Cloud Amount bin centres
  • long_name: Cloud Amount bin_bounds
  • var_id: bin_bounds
  • units: 1
  • names: Cloud Amount bin_bounds
  • units: g/m^2
  • standard_name: atmosphere_cloud_ice_content
  • long_name: Cloud Ice Water Path
  • var_id: a_CIWP
  • names: atmosphere_cloud_ice_content, Cloud Ice Water Path
  • long_name: Cloud Ice Water Path PDF
  • var_id: h_CIWP
  • units: 1
  • names: Cloud Ice Water Path PDF
  • units: g/m^2
  • long_name: Cloud Ice Water Path bin centres
  • var_id: bin
  • names: Cloud Ice Water Path bin centres
  • units: g/m^2
  • long_name: Cloud Ice Water Path bin_bounds
  • var_id: bin_bounds
  • names: Cloud Ice Water Path bin_bounds
  • units: g/m^2
  • standard_name: atmosphere_cloud_liquid_water_content
  • long_name: Cloud Liquid Water Path
  • var_id: a_CLWP
  • names: atmosphere_cloud_liquid_water_content, Cloud Liquid Water Path
  • long_name: Cloud Liquid Water Path PDF
  • var_id: h_CLWP
  • units: 1
  • names: Cloud Liquid Water Path PDF
  • units: g/m^2
  • var_id: bin
  • long_name: Cloud Liquid Water Path bin centres
  • names: Cloud Liquid Water Path bin centres
  • units: g/m^2
  • var_id: bin_bounds
  • long_name: Cloud Liquid Water Path bin_bounds
  • names: Cloud Liquid Water Path bin_bounds
  • var_id: a_CZ
  • standard_name: cloud altitude??
  • units: DegK
  • long_name: Cloud Top Height
  • names: Cloud Top Height, cloud altitude??
  • long_name: Cloud Top Height PDF
  • var_id: h_CZ
  • units: 1
  • names: Cloud Top Height PDF
  • units: DegK
  • var_id: bin
  • long_name: Cloud Top Height bin centres
  • names: Cloud Top Height bin centres
  • units: DegK
  • long_name: Cloud Top Height bin_bounds
  • var_id: bin_bounds
  • names: Cloud Top Height bin_bounds
  • long_name: Cloud Top Pressure
  • var_id: a_CP
  • standard_name: air_pressure_at_cloud_top
  • units: hPa
  • names: Cloud Top Pressure, air_pressure_at_cloud_top
  • long_name: Cloud Top Pressure PDF
  • var_id: h_CP
  • units: 1
  • names: Cloud Top Pressure PDF
  • var_id: bin
  • units: hPa
  • long_name: Cloud Top Pressure bin centres
  • names: Cloud Top Pressure bin centres
  • var_id: bin_bounds
  • units: hPa
  • long_name: Cloud Top Pressure bin_bounds
  • names: Cloud Top Pressure bin_bounds
  • units: g/m^2
  • long_name: High Cloud Ice Water Path
  • var_id: a_CIWPH
  • names: High Cloud Ice Water Path
  • long_name: High Cloud Ice Water Path PDF
  • units: 1
  • var_id: h_CIWPH
  • names: High Cloud Ice Water Path PDF
  • units: g/m^2
  • var_id: bin
  • long_name: High Cloud Ice Water Path bin centres
  • names: High Cloud Ice Water Path bin centres
  • units: g/m^2
  • long_name: High Cloud Ice Water Path bin_bounds
  • var_id: bin_bounds
  • names: High Cloud Ice Water Path bin_bounds
  • long_name: Phase
  • names: Phase
  • units: %
  • long_name: Relative High Cloud Amount
  • var_id: a_CAHR
  • names: Relative High Cloud Amount
  • long_name: Relative High Cloud Amount PDF
  • var_id: h_CAHR
  • units: 1
  • names: Relative High Cloud Amount PDF
  • long_name: Relative High Cloud Amount bin centres
  • var_id: bin
  • units: %
  • names: Relative High Cloud Amount bin centres
  • units: %
  • long_name: Relative High Cloud Amount bin_bounds
  • var_id: bin_bounds
  • names: Relative High Cloud Amount bin_bounds
  • units: %
  • long_name: Relative Ice Cloud Amount
  • var_id: a_CAIR
  • names: Relative Ice Cloud Amount
  • long_name: Relative Ice Cloud Amount PDF
  • var_id: h_CAIR
  • units: 1
  • names: Relative Ice Cloud Amount PDF
  • long_name: Relative Ice Cloud Amount bin centres
  • var_id: bin
  • units: %
  • names: Relative Ice Cloud Amount bin centres
  • long_name: Relative Ice Cloud Amount bin_bounds
  • units: %
  • var_id: bin_bounds
  • names: Relative Ice Cloud Amount bin_bounds
  • long_name: Relative Low Cloud Amount
  • var_id: a_CALR
  • units: %
  • names: Relative Low Cloud Amount
  • units: 1
  • long_name: Relative Low Cloud Amount PDF
  • var_id: h_CALR
  • names: Relative Low Cloud Amount PDF
  • long_name: Relative Low Cloud Amount bin centres
  • var_id: bin
  • units: %
  • names: Relative Low Cloud Amount bin centres
  • long_name: Relative Low Cloud Amount bin_bounds
  • units: %
  • var_id: bin_bounds
  • names: Relative Low Cloud Amount bin_bounds
  • long_name: Relative Mid Cloud Amount
  • var_id: a_CAMR
  • units: %
  • names: Relative Mid Cloud Amount
  • long_name: Relative Mid Cloud Amount PDF
  • var_id: h_CAMR
  • units: 1
  • names: Relative Mid Cloud Amount PDF
  • var_id: bin
  • units: %
  • long_name: Relative Mid Cloud Amount bin centres
  • names: Relative Mid Cloud Amount bin centres
  • units: %
  • var_id: bin_bounds
  • long_name: Relative Mid Cloud Amount bin_bounds
  • names: Relative Mid Cloud Amount bin_bounds
  • units: %
  • long_name: Relative Water Cloud Amount
  • var_id: a_CAWR
  • names: Relative Water Cloud Amount
  • long_name: Relative Water Cloud Amount PDF
  • var_id: h_CAWR
  • units: 1
  • names: Relative Water Cloud Amount PDF
  • units: %
  • var_id: bin
  • long_name: Relative Water Cloud Amount bin centres
  • names: Relative Water Cloud Amount bin centres
  • units: %
  • long_name: Relative Water Cloud Amount bin_bounds
  • var_id: bin_bounds
  • names: Relative Water Cloud Amount bin_bounds
  • long_name: StD of Cloud Amount
  • var_id: s_CA
  • units: 1
  • names: StD of Cloud Amount
  • units: g/m^2
  • long_name: StD of Cloud Ice Water Path
  • var_id: s_CIWP
  • names: StD of Cloud Ice Water Path
  • units: g/m^2
  • long_name: StD of Cloud Liquid Water Path
  • var_id: s_CLWP
  • names: StD of Cloud Liquid Water Path
  • var_id: s_CZ
  • units: DegK
  • long_name: StD of Cloud Top Height
  • names: StD of Cloud Top Height
  • long_name: StD of Cloud Top Pressure
  • var_id: s_CP
  • units: hPa
  • names: StD of Cloud Top Pressure
  • units: g/m^2
  • long_name: StD of High Cloud Ice Water Path
  • var_id: s_CIWPH
  • names: StD of High Cloud Ice Water Path
  • long_name: StD of Relative High Cloud Amount
  • var_id: s_CAHR
  • units: %
  • names: StD of Relative High Cloud Amount
  • long_name: StD of Relative Ice Cloud Amount
  • var_id: s_CAIR
  • units: %
  • names: StD of Relative Ice Cloud Amount
  • units: %
  • long_name: StD of Relative Low Cloud Amount
  • var_id: s_CALR
  • names: StD of Relative Low Cloud Amount
  • units: %
  • long_name: StD of Relative Mid Cloud Amount
  • var_id: s_CAMR
  • names: StD of Relative Mid Cloud Amount
  • long_name: StD of Relative Water Cloud Amount
  • var_id: s_CAWR
  • units: %
  • names: StD of Relative Water Cloud Amount
  • units: g/m^2
  • long_name: StD of Weighted Cloud Ice Water Path
  • var_id: s_AIWP
  • names: StD of Weighted Cloud Ice Water Path
  • units: g/m^2
  • long_name: StD of Weighted Cloud Liquid Water Path
  • var_id: s_ALWP
  • names: StD of Weighted Cloud Liquid Water Path
  • units: g/m^2
  • standard_name: atmosphere_cloud_ice_content
  • long_name: Weighted Cloud Ice Water Path
  • var_id: a_AIWP
  • names: atmosphere_cloud_ice_content, Weighted Cloud Ice Water Path
  • var_id: h_AIWP
  • units: 1
  • long_name: Weighted Cloud Ice Water Path PDF
  • names: Weighted Cloud Ice Water Path PDF
  • units: g/m^2
  • long_name: Weighted Cloud Ice Water Path bin centres
  • var_id: bin
  • names: Weighted Cloud Ice Water Path bin centres
  • units: g/m^2
  • long_name: Weighted Cloud Ice Water Path bin_bounds
  • var_id: bin_bounds
  • names: Weighted Cloud Ice Water Path bin_bounds
  • units: g/m^2
  • long_name: Weighted Cloud Liquid Water Path
  • standard_name: atmosphere_cloud_liquid_water_content
  • var_id: a_ALWP
  • names: atmosphere_cloud_liquid_water_content, Weighted Cloud Liquid Water Path
  • long_name: Weighted Cloud Liquid Water Path PDF
  • var_id: h_ALWP
  • units: 1
  • names: Weighted Cloud Liquid Water Path PDF
  • units: g/m^2
  • var_id: bin
  • long_name: Weighted Cloud Liquid Water Path bin centres
  • names: Weighted Cloud Liquid Water Path bin centres
  • units: g/m^2
  • var_id: bin_bounds
  • long_name: Weighted Cloud Liquid Water Path bin_bounds
  • names: Weighted Cloud Liquid Water Path bin_bounds
  • long_name: fraction of retrieved pixels
  • var_id: f_CZ
  • units: 1
  • names: fraction of retrieved pixels
  • units: DegK
  • long_name: number of orbits
  • var_id: n_tot
  • names: number of orbits
  • long_name: number of retrievals
  • var_id: n_CZ
  • units: 1
  • names: number of retrievals
  • var_id: n_obs_CZ
  • long_name: total number of observations
  • units: 1
  • names: total number of observations

Co-ordinate Variables

  • standard_name: latitude
  • var_id: latitude
  • long_name: Latitude
  • units: degrees_north
  • names: latitude, Latitude
  • units: degrees_east
  • standard_name: longitude
  • long_name: Longitude
  • var_id: longitude
  • names: longitude, Longitude
  • long_name: time
  • standard_name: time
  • var_id: time
  • names: time
Coverage
Temporal Range
Start time:
1995-06-30T23:00:00
End time:
2009-12-31T00:00:00
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°