IBI-ROOS partner products

The products provided by IBI-ROOS partners are described here.

The different products provided are processed from in-situ or satellite observations or model outputs .

Atlantic Ocean- Iberian Biscay Irish Sea -Along-track Sea Surface Heights

AVISO-ATL-NRTSLAEXT-OBS

Short description:

For the Iberian Biscay Irish Seas- Mono altimeter satellite along-track sea surface heights computed with respect to a seven-year mean. All the missions are homogenized with respect to a reference mission.

This regional product is specific in the sense that it resulting from specific processes, available in real time (i.e each day) and in delayed time, delivered with high frequency, ocean tide and inverse barometer corrections. The first two corrections were applied in the SLA computation; the third correction is provided for users who want to use the "conventional" inverse barometer in place of the more precise high frequency correction. This is an operational nominal product for Sea Level Observations

Long product description (OVERVIEW)

See following link :

http://www.aviso.oceanobs.com/en/data/products/sea-surface-height-products/regional/sla-extended/index.html

This product is produced by the Duacs is the Ssalto multimission altimeter data processing system. It serves in near-real time the main operational oceanography and climate forecasting centers in Europe and worldwide.

For more information on the SSALTO/DUACS center see the following link:http://www.aviso.oceanobs.com/en/data/product-information/duacs/presentation/index.html

DUACS (Data Unification and Altimeter Combination System) is part of the CNES multi-mission ground segment (SSALTO). It processes data from all altimeter missions: Jason-1, T/P, ENVISAT, GFO, ERS1/2 and even GEOSAT. DUACS provides a consistent and homogeneous catalogue of products for varied applications, both for near real time applications and offline studies.Processing information: To produce (M)SLA and (M)ADT in near-real time, the SSALTO/DUACS system uses the latest high-quality altimeter data produced in Near-Real-Time (IGDR).SALTO/DUACS system acquires then synchronize altimeter data and auxiliary data; each mission is homogenized using the same models and corrections.The Input Data Quality Control check that the system uses the best altimeter data. The multi-mission cross-calibration process removes any residual orbit error, or long wavelength error (LWE), as well as large scale biases and discrepancies between various data flows; all altimeter fields are interpolated at crossover locations and dates. After a repeat-track analysis, a mean profile is substracted to compute sea level anomaly. Data are then cross validated, filtered from residual noise and small scale signals, and finally sub-sampled (Sea level Anomaly product, SLA).

ODYSSEA Global High Resolution Foundation Sea Surface Temperature Analysis

CERSAT-GLOB-ODYSSEA-SST-NRT-OBS
General information:The high resolution global sea surface temperature analysis of MERSEA is produced at IFREMER/CERSAT . It provides a daily gap-free map of the foundation sea surface temperature (e.g. without diurnal cycle effect) at 10km resolution, using all available infra-red and microwave spaceborne sensors.

Processing information: The ODYSSEA(Ocean Data analYsis System for merSEA) processing chain developed to produce this dataset is based on a careful selection and correction of available observations, using adjustement to in situ and AATSR sensor observations, and an optimal interpolation method to filll the gaps.

Description of observation methods/instruments:The ODYSSEA analysis uses observations by the following sensors : AATSR onboard ENVISAT, AVHRR onboard NOAA-17 and NOAA-18, Imager onboard GOES-11 and GOES-12, SEVIRI onboard MSG-2, AMSRE onboard AQUA and TMI onboard TRMM

Quality / Accuracy / Calibration information: http://www.mersea.eu.org/Satellite/sst_validation.html

Suitability, Expected type of users / uses: any application requiring gap free sea surface temperature fields : ocean model assimilation and validation, coastal and open-ocean oceanography

References: MERSEA-WP02-IFR-STR-001-1A, J.F Piolle and Emmanuelle Autret, Octobre 2007 (doc)

ODYSSEA Ultra High Resolution Foundation Sea Surface Temperature Analysis over Europe North-Western Shelves

CERSAT-NWSHELF-ODYSSEA_SST_NRT-OBS
General information:The Europe North-Western Shelves ultra high resolution sea surface temperature analysis of MyOcean is produced at IFREMER/CERSAT . It provides a daily gap-free map of the foundation sea surface temperature (e.g. without diurnal cycle effect) at 2km resolution over European North-Western Shelves, using all available infra-red and microwave spaceborne sensors.

Processing information: The ODYSSEA(Ocean Data analYsis System for merSEA) processing chain developed to produce this dataset is based on a careful selection and correction of available observations, using adjustement to in situ and AATSR sensor observations, and an optimal interpolation method to filll the gaps.

Description of observation methods/instruments:The ODYSSEA analysis uses observations by the following sensors : AATSR onboard ENVISAT, AVHRR onboard NOAA-17, NOAA-18 and METOP, Imager onboard GOES-11 and GOES-12, SEVIRI onboard MSG-2, AMSRE onboard AQUA and TMI onboard TRMM

Quality / Accuracy / Calibration information: http://www.mersea.eu.org/Satellite/sst_validation.html

Suitability, Expected type of users / uses: any application requiring gap free sea surface temperature fields : ocean model assimilation and validation, coastal and open-ocean oceanography

References: MERSEA-WP02-IFR-STR-001-1A, J.F Piolle and Emmanuelle Autret, Octobre 2007 (doc)

Global Ocean- In-situ Observations Daily Delivery

CORIOLIS-GLOBAL-NRT-OBS

Short description:

For the Global Ocean- Coriolis global in-situ observations daily delivery. The Coriolis real-time product integrates the real-time in situ data for temperature and salinity measurements. These data are collected from main global networks (Argo, GoSUD, OceanSites, GTS) completed by European data provided by EuroGOOS regional systems. The data are quality controlled using automated procedures and statistical analysis residuals. It is updated daily. It is the In Situ data operational nominal product for the Global Ocean.

General information : Ocean circulation models need information on the interior of the ocean to be able to generate accurate forecast. This information is only available from in-situ measurement. However this information is acquired all around the world and not easily available to the operational users. Therefore, Coriolis data center , by connecting to a lot of international networks, collects, controls and disseminates the relevant in-situ data to operational users. Each day, a new release of the product is issued containing the observations which have never been disseminated in previous release or have been updated. A sliding window of the past 3 months of product is available at the In-Situ Each TEP. No Archive of the product releases is insured at the In-Situ TEP, only the individual observations are archived.
Processing information : the product is the homogeneous aggregation of observation data coming from various in-situ sources, quality controlled according to standardized procedure. the duplicate removal have been processed.Description of observation methods / instruments :

  1. profile data from ARGO profiling floats, CTD and XBT from research vessels or vessels of opportunity, mooring from various projects (animate, tao/triton/pirata, soon OceanSites) and profile data from GTS ( Global Telecommunication System in BUOY, BATHY and TESAC format).
  2. along the track data from thermosalinograph, ARGO profiling floats and drifting buoys available on GTS network.
The measured parameters, depending on the data source, are : temperature, salinity, dissolved oxygen or carbon...
The reference level of measurements is immersion (in meters) or pressure (in decibars).
Quality/accuracy/calibration information : On each profile or underway data individual automatic tests (peak detection, ....) and statistical tests (comparison with climatology and neighbour measurements) are performed. On doubtful data visual control by ocean physics expert is performed. As a result of these tests, quality control flags are assigned to each measurement and included in the product.
Suitability, Expected type of users / uses : The product is designed for assimilation into operational models operated by ocean forecating centers. These users need data aggregated and quality controlled in a reliable and documented manner. As the different releases of the product are not archived by Coriolis , users have to manage their own in-situ data archive if they need it.

MERIS water-leaving radiances and OC5 products (Chlorophyll-a, Suspended inorganic matters, KPAR, turbidity)

IFREMER-EUR-L3_HR_MERIS_ATL-OBS
General information: Meris OC5 products at 1km resolution.

Processing information: Processed at Ifremer using MERIS L2 orbits. Binned MERIS orbits.

Description of observation methods/instruments:

Quality /  Accuracy / Calibration  information: CF OC5 products documentation

Suitability, Expected type of users / uses: Biology, remote sensing, modelling,

References: francis.gohin@ifremer.fr

MODIS water-leaving radiances and OC5 products (Chlorophyll-a, Suspended inorganic matters, KPAR, turbidity)

IFREMER-EUR-L3_HR_MODIS_ATL-OBS
General information: Modis OC5 products 1km resolution.

Processing information: Processed at Ifremer using Modis/Aqua L2 files. Binned Modis/Aqua granules.

Description of observation methods/instruments:

Quality /  Accuracy / Calibration  information: CF OC5 products documentation

Suitability, Expected type of users / uses: Biology, remote sensing, modelling,

References: francis.gohin@ifremer.fr

SeaWiFS water-leaving radiances and OC5 products (Chlorophyll-a, Suspended inorganic matters, KPAR, turbidity)

IFREMER-EUR-L3_HR_SEAWIFS_ATL-OBS
General information: SeaWiFS OC5 products, 1km resolution.

Processing information: Processed at Ifremer using SeaWiFS L2 files. Binned SeaWiFS granules.

Description of observation methods/instruments:

Quality /  Accuracy / Calibration  information: CF OC5 products documentation

Suitability, Expected type of users / uses: Biology, remote sensing,modelling,

References: francis.gohin@ifremer.fr

This daily analysis provide interpolated fields of the OC5 Chl-a products.

IFREMER-EUR-L4_HR_CHL_ATL-OBS
General information: High resolution Chl-a analysis produces at Ifremer.

Processing information: Optimized interpolation of the MODIS, SeaWiFS and MERIS OC5 Chl-a fields.

Description of observation methods/instruments:

Quality /  Accuracy / Calibration  information:

Suitability, Expected type of users / uses: any application requiring gap free Chl-a fields : ocean model assimilation and validation, coastal and open-ocean oceanography

References: bertrand.saulquin@ifremer.fr

This daily analysis provide interpolated fields of the OC5 SPIM products.

IFREMER-EUR-L4_HR_SPIM_ATL-OBS
General information: High resolution SPIM analysis produced at Ifremer.

Processing information: Optimized interpolation of the MODIS, SeaWiFS and MERIS OC5 SPIM fields..

Description of observation methods/instruments:

Quality / Accuracy / Calibration information:

Suitability, Expected type of users / uses: any application requiring gap free SPIM fields : ocean model assimilation and validation, coastal and open-ocean oceanography

References: bertrand.saulquin@ifremer.fr,

EUR-L4UHRfnd-IBIROOS-v01-f01-OIAVHRR: daily interpolated High Resolution Sea Surface Temperature from 1986 to 2006 over the IBIROOS area (IrelandBiscayIberia Regional Operating Operational System) in 0.044deg. Geographical Grid.

IFREMER-GASCOGNE-AVHRR-SST-REANA-OBS

General information: L4 product, analysis of a SST night time series of the Advanced Very High Resolution Radiometer (AVHRR) sensors embedded on the Pathfinder satellites over the period 1986-2006.

Processing information: resolution of 0.044deg. in a Geographical Grid.

Description of observation methods/instruments: Analyse of the night time serie of the AVHRR sensors. The mean temperature is evaluated using a seasonal model composed of two harmonic functions and a linear trend for the long term evolution of the SST. The anomalies calculated from that model and then interpolated using the kriging procedure.

Quality / Accuracy / Calibration information: See AVHRR calibration informations.

Suitability, Expected type of users / uses: These interpolated data can be used as satellite SST data and the important coverage allows various utilisations.

References: Publication (accepted by the International Journal of Remote Sensing, but not publised the 2008-06-16): Evolution of the Sea Surface Temperature from satellite and in situ data in the English Channel for the period 1986-2006.

Noth-East Atlantic ROMS Ocean Model V1

IMI-NEATL-ROMSV1-FOR

General information:

The Marine Institute NE Atlantic ROMS (www.myroms.org) predictive model with a 2.5 km resolution and 40 S levels uses the latest Irish SWATH bathymetry over most of the domain. Forecasts are made of tides and storm surges, as well as temperature, salinity and 3D velocity. 35 major rivers are reperesented in the model. Tidal potential for 26 constituents is applied as a body force and tidal boundary conditions come from TPXO 7. The model is nested into Mercator PSY2V3R1. Surface forcing comes from NCEP GFS, using the bulk aerodynamic flux compuations within ROMS. Following trials, the model will soon be supplemented with bio-geochemical fields and suspended sediment.

Processing information:

The model is run every week day in the morning. This will be extended to the weekend soon. Outputs from the model are regridded to a regular lat-lon-z grid and these data, as well as the original curvilinear history files (aggregated in time) are output to our Thredds server at http://milas.marine.ie/thredds. Data normally appears at approximately 1200 UTC as well as jpeg animations at http://www.marine.ie/home/services/operational/oceanography/OceanForecast.htm Strom surge data is output to the ECOOP Matroos portal.

Description of observation methods/instruments:

Weekly model validation data and comparisons appears on the Marine Institute web site at http://www.marine.ie/home/services/operational/oceanography/ModelValidation.htm

Presently this comprises intercomparisons with all ARGO profiles made within the last week and with sea level intercomparisons with Irish coastal tide gauges. This will soon be supplemented with microwave radiometer brightness temperature intercomparisons with model SST.

The Instituto Superior Tecnico (IST) Portuguese Coast Operational Modelling System MOHID forecast system.

IST-IBERIA-MOHID_PCOMS_V1-FOR

General information:

The Instituto Superior Tecnico (IST) Portuguese Coast Operational Modelling System MOHID (www.mohid.com) forecast system downscales with 5-6 km resolution and 50 vertical levels from the PSY2V3 Mercator Ocean solution for the North Atlantic, with tidal forcing from a 2D barotropic model forced by FES2004 global solution and the ocean-atmosphere interface forcing is provided by the weather forecast system operated also at IST using the MM5 regional scale model. The 3 days forecasts consist of temperature, salinity, currents and sea level.


Processing information:

The model is run everyday in the morning. Results are available online around 1200 UTC and PNG maps are publish currently at http://www.mohid.com/operational/. The outputs are converted to netcdf, processed and made available via a Thredds server at http://data.mohid.com:8080/thredds/catalog/MohidAll/pcoms/.

Description of observation methods/instruments:

Model validation and comparisons are made daily with the available data: coastal buoys operated by Instituto Hidrografico (Portugal) and Puertos del Estado (Spain); remote sensing data (MODIS, MISST-GODAE, GHRSST-OSTIA), and will soon be made available online.

Atlantic Ocean Analysis and Forecast

MERCATOR-GLOBAL-PSY2V3-FOR
Short description

The Operational Mercator global Ocean analysis and forecast – regional eddy resolving MERSEA 1/12deg.- forecasting system is running every week providing 14 days of 3D regional ocean forecast including Sea Ice as well as 14 days of ocean analysis. It is the operational nominal product for the North and Tropical Atlantic and Mediterranean basins..

Long product description (OVERVIEW)

The target MERSEA 1/12deg. regional forecasting system uses the NEMO (Nucleus for European Models of the Ocean) modeling system version 1.09 which includes the version 9 of the ocean model OPA, coupled to the thermodynamic-dynamic sea ice model LIM2 (Louvain sea Ice Model 2).

The atmospheric forcing fields which drive the system are calculated from ECMWF operational atmospheric analyses and forecast using an empirical bulk formulae parameterization.

The data assimilation technique is a multi-data and multivariate assimilation algorithm consisting of a Singular Extended Evolutive Kalman (SEEK) filter analysis method. The SEEK filter is a reduced-order Kalman filter introduced in the context of mesoscale ocean models with large computational needs. This method assimilates jointly satellite Sea Level Anomaly and Sea Surface Temperature, and in situ profiles of temperature and salinity. The error statistics are represented in a sub-space spanned by a small number of dominant 3D error directions.

The sea ice is fully comprehensive with the implementation of the LIM2 model. With sea ice concentration, sea ice/snow thicknesses, sea ice drift and sea ice thermal content prognosed by this multi-layer model based on the Semtner 3-layers and the Hibler visco-plastic formulations, the analyses and forecast handle most of the processes linked to the sea ice lifecycle.

The combination of an energy-enstrophy conserving scheme for momentum advection with a partial steps representation of the bottom topography yields significant improvements in the mean circulation and in the representation of western boundary currents such as the Gulf Stream and the downstream flow of the North Atlantic Current. In order to better resolve the upper layers, the vertical grid (50 levels) has been refined at the surface ending with a discretization of 1m until 20m depth and of 500m for the bottom layers. This surface refined-mesh has been designed to improve the circulation in the coastal shelves and to represent more adequately the impact of the atmospheric diurnal cycle, which is planned to be explicitly modeled in the near future.

In order to solve problems related to the size of each output file, the global output fields are available on the global area at the resolution of 1/2deg.. They also have been split up into several files. Ocean Fields are hence available in the following areas for delivery:
Area Grid resolution Projection

NAT North Atlantic 1/6deg. Mercator

TAT Tropical Atlantic 1/4deg. Mercator

MED Mediterranean Sea 1/8deg. Mercator

SPATIAL RESOLUTION: native 1/12deg.

GRID TYPE or GEOGRAPHICAL PROJECTION:
Area Grid resolution Projection

NAT North Atlantic 1/6deg. Mercator

TAT Tropical Atlantic 1/4deg. Mercator

MED Mediterranean Sea 1/8deg. Mercator

 

VERTICAL COVERAGE: 43 levels from 0 to 5000 meters.

0/5/10/15/20/25/30/40/50/60/75/100/125/150/175/200/225/250/300/400/500/600/700/800/900/1000/1100/1200/1300/

1400/1500/1750/2000/2250/2500/2750/3000/3250/3500/4000/4500/5000/5500/

In the MED area (Mediterranean Sea) , 40 levels from 0 to 4000 meters.

0/5/10/15/20/25/30/40/50/60/75/100/125/150/175/200/225/250/300/400/500/600/700/800/900/1000/1100/1200/1300/

1400/1500/1750/2000/2250/2500/2750/3000/3250/3500/4000/

 

TEMPORAL COVERAGE since 2008-04-09 – ONGOING

It is a time series with a sliding window of 1 year length

TEMPORAL RESOLUTION daily mean fields

Temporal window of each update 28days

Forecast length 14days

Analysis length 14days

Update frequency weekly every Tuesday

Time series Length of forecast: 14 days sliding window

Time series Length of best estimate analysis: 1 year sliding window

Operational or historical time series? Operational

Modèle physique de façade Manche-Atlantique (F1) / Bay of Biscay-Channel Circulation model (F1)

PREVIMER-MANCHEGASCOGNE-MARS3DF1FILTR-FOR

 

Le modèle de façade Atlantique F1 est un modèle MARS 3D qui tourne en mode prototype de l'opérationnel.

Il fournit des prévisions à J+2 de hauteurs d'eau, de courants, de température et de salinité.

Couverture temporelle : 3 jours dont 1 jour de prévisions.

Profondeur : sur toute la colonne d'eau sur 30 niveaux sigma.

Résolution temporelle : heure sauf pour les températures et salinités jounalières

 

The seafront model is a 3D prototype of operational model for D+2 forcasting of sea level, currents, temperature and salinity.

This model covers the Bay of Biscay, zooming in on the Iroise Sea west of Brittany which features strong currents and a remarkable temperature front.

Each run computes 3 days including 2 days of analysis and 1 day of forecast.

The model covers the full water column from bottom to surface on 30 sigma levels.

The ocean parameters resolution is hourly except for sea temperature and salinty which are daily.