Detailed data record information for ICDR AVHRR

Here you find detailed information about a CM SAF data record and links to order the described products.

Title

ICDR AVHRR - based on CLARA-A2 methods

Citation

Karlsson, Karl-Göran; Riihelä, Aku; Trentmann, Jörg; Stengel, Martin; Meirink, Jan Fokke; Solodovnik, Irina; Devasthale, Abhay; Manninen, Terhikki; Jääskeläinen, Emmihenna; Anttila, Kati; Kallio-Myers, Vilvi; Benas, Nikos; Selbach, Nathalie; Stein, Diana; Kaiser, Johannes; Hollmann, Rainer (2021): ICDR AVHRR - based on CLARA-A2 methods, Satellite Application Facility on Climate Monitoring, https://wui.cmsaf.eu/safira/action/viewICDRDetails?acronym=CLARA_AVHRR_V002_ICDR.

Publisher

Satellite Application Facility on Climate Monitoring (CM SAF)

Publication year

2021

Author(s)

Karlsson, Karl-Göran; Riihelä, Aku; Trentmann, Jörg; Stengel, Martin; Meirink, Jan Fokke; Solodovnik, Irina; Devasthale, Abhay; Manninen, Terhikki; Jääskeläinen, Emmihenna; Anttila, Kati; Kallio-Myers, Vilvi; Benas, Nikos; Selbach, Nathalie; Stein, Diana; Kaiser, Johannes; Hollmann, Rainer

Description

The Interim Climate Data Record (ICDR) AVHRR provides a routinely generated continuation of the product suite of the CLARA-A2.1 climate data record (CM SAF cLoud, Albedo and RAdiation products - AVHRR-based, edition 2.1; http://dx.doi.org/10.5676/EUM_SAF_CM/CLARA_AVHRR/V002_01), which in turn is an update and extension of the CLARA-A2 climate data record (Karlsson et al., 2017; http://dx.doi.org/10.5194/acp-17-5809-2017). The ICDR products are generated and published within five days of the corresponding observations. The ICDR AVHRR features a range of cloud, surface albedo and surface radiation products derived from the AVHRR instruments onboard polar orbiting NOAA and METOP satellites, which are consistent with the heritage record CLARA-A2.1. The cloud products comprise cloud mask, cloud top temperature/pressure/height, cloud thermodynamic phase, and (for liquid and ice clouds separately) cloud optical thickness, cloud particle effective radius and cloud water path. They are available as monthly and daily averages. Surface albedo is presented as monthly and pentad (5 day) averages of the broadband black-sky albedo and is derived using all available data during the studied period. Surface radiation is provided as monthly and daily averages for the downwelling shortwave component. All monthly, pentad and daily averages are available on a 0.25°x0.25° global grid. Surface albedo and cloud products are also provided in two equal area grids with a resolution of 25 km x 25 km covering the polar regions. A summary of the ICDR AVHRR characteristics and evaluation are available through Product User Manuals, Validation Reports and Algorithm Theoretical Baseline Documents. In addition, Annual Quality Assessments are published by CM SAF.

Format

NetCDF-4

Version

Based on CLARA-A2 methods

Temporal coverage

2019-01-01 - present

Geographic coverage

Latitude: -90.0° S to 90.0° N
Longitude: -180.0° W to 180.0° E

Documentation

Related publications

Related Data Records

Data record details and ordering

Products from Polar Orbiting Satellites (LEO)

Cloud phase (CPH)

Cloud top parameters CTT, CTP and CTH (CTO)

Fractional cloud cover (CFC)

Ice water path (IWP)

Liquid water path (LWP)

Surface albedo (SAL)

Surface incoming shortwave radiation (SIS)