Date (Publication)

2019-07-04

Identifier

FR-330-715-368-00032-IFR-HEAT_FLUXES

Identifier

DOI:10.12770/a290bb8a-f9e9-4011-b081-cebacec746bf

Credit

Ifremer - Laboratoire d’Océanographie Physique et Spatial (LOPS)

GEMET - INSPIRE themes, version 1.0

• Oceanographic geographical features

Use limitation

Données sous Licence ouverte / Open licence : http://www.etalab.gouv.fr/pages/licence-ouverte-open-licence-5899923.html

Access constraints

Other restrictions

Use constraints

Copyright

Spatial representation type

Grid

Metadata language

English

Character set

UTF8

Topic category

• Oceans

Begin date

1992-01-01

Reference system identifier

EPSG / WGS 84 (EPSG:4326) / 8.6

Distribution format

• ( )

OnLine resource

/home/ref-heat-fluxes ( NETWORK:LINK )

OnLine resource

DOI of the dataset ( WWW:LINK-1.0-http--metadata-URL )

DOI of the dataset

Protocol

WWW:DOWNLOAD-1.0-http--download

Name

Upgrading and Estimation of Long Time Series of Heat Fluxes from Remotely Sensed Observations

OnLine resource

Report on Heat Fluxes V4.1 ( WWW:LINK )

Upgrading and Estimation of Long Time Series of Heat Fluxes from Remotely Sensed Observations. 1992 - 2018

OnLine resource

download link ( WWW:DOWNLOAD-1.0-link--download )

Hierarchy level

Dataset

Statement

This new version of Ifremer daily heat fluxes uses the updated empirical model relating 10m specific air humidity (Qa10) and radiometer brightness temperature (TB) measurements. The determination of the empirical Qa10 model is described in (Bentamy et al, 2013). For this project, a new calibration of Qa10 model is performed in conjunction with the use of the recently re-processed fundamental climate data record (FCDR) of brightness temperatures from the Colorado State University (CSU_FCDR) (Wesley et al, 2013), and the latest reprocessed International Comprehensive Ocean–Atmosphere Data Set (ICOADS Version 3; Freeman et al. 2017). The latter is a compilation of in situ surface marine observations (ship, moored and drift buoys). ICOADS Qa10 and FCDR_CSU TB are collocated in space and time. The resulting collocated data allow the determination and improvement of the satellite Qa10 model. Figure 1 shows examples of monthly mean difference between Qa10 from OHF standard product (Bentamy et al 2017a) and from the updated estimates. The former are calculated from daily estimates occurring in January (Figure 1a) and July (Figure 1b) 2003. The main departure between the two estimates are clearly depicted in Gulf Stream, Kurishio, and Aghulas regions, where the OHF standard data are overestimated compared to the new data. Such overestimation leads to the underestimation of OHF standard LHF (Bentamy et al, 2017a).

File identifier

a290bb8a-f9e9-4011-b081-cebacec746bf XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2021-08-11T16:47:27

Metadata standard name

ISO 19115:2003/19139 - SEXTANT

Metadata standard version

1.0