GOCCP, DARDAR and PM-L2 cloud-top-phase product ensemble (GDP): Combination of instant cloud phase retrievals of A-Train lidar, radar, radiometer and polarimeter.

This dataset contains a collocation of three different A-Train cloud phase products on a 2x30 grid (latxlon): The GCM-Oriented Cloud Calipso Product (GOCCP v3.0), the liDAR-raDAR (DARDAR-MASK v2.0) product, and the Polarization & Anisotropy of Reflectances for Atmospheric Sciences coupled with Observations from a Lidar (PARASOL) + Aqua/MODIS combination (PM-L2) product.

To better understand the differences in cloud glaciation around the globe, liquid and ice cloud tops around the globe were counted, as observed from four different space-borne instruments (lidar, radar, radiometer and polarimeter) during four years. The top pixels of each product were selected and binned into 3 K temperature intervals. With this data, an algorithm was applied to determine the most probable thermodynamic phase at cloud top based on the different cloud-phase products on a 2x30 grid (latxlon). The "GDP2" ensemble was produced using the mode between the three different binary classifications (ice/liquid), provided that all three products are available at each timestep. The "GDP3" ensemble is a subselection of the GDP2 ensemble, containing only timesteps where all three products agree. The "GP"(GOCCP and PM-L2), "DP"(DARDAR and PM-L2) and "GD"(GOCCP and DARDAR) ensembles contain only timesteps where two products agree.

Date (Publication): 2020-05-19T08:32:12

Date (Creation): 2020-05-19T08:32:12

Citation identifier: https://catalogue.ceda.ac.uk/uuid/f742c505c935467ebb4cf89a611a4436

Citation identifier: Centre for Environmental Data Analysis (CEDA) / f742c505c935467ebb4cf89a611a4436

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Unavailable	Villanueva, Diego	Unavailable	Author
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Custodian
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Distributor
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	pointofContact
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Publisher

Maintenance and update frequency: Not planned

Update scope: Dataset

Keywords

cloud
phase
top
GOCCP
DARDAR
PM-L2

GEMET - INSPIRE themes, version 1.0

atmospheric conditions

Access constraints: Other restrictions

Other constraints: Public data: access to these data is available to both registered and non-registered users.

Use constraints: Other restrictions

Other constraints: Under the following licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Climatology, meteorology, atmosphere

Begin date: 2007-01-01T00:00:00

End date: 2010-07-27T00:00:00

Unique resource identifier: WGS 84

Distribution format

Name	Version
Data are netCDF formatted.

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/f742c505c935467ebb4cf89a611a4436	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/badc/deposited2020/cloud-top-phase/data/	DOWNLOAD

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: Data were gathered, quality controlled, and processed for archiving by the scientist before uploading to the Centre for Environmental Data Analysis (CEDA) for long term archiving.

Metadata

File identifier: f742c505c935467ebb4cf89a611a4436 XML

Metadata language: English

Character set: UTF8

Hierarchy level: Dataset

Date stamp: 2026-03-15T03:20:18

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Centre for Environmental Data Analysis (CEDA)		support@ceda.ac.uk	Point of contact

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