Biscay AGL Service Activities

Share:

SA Number: 6.1

Name of the SA: BISCAY AGL- Southeastern Bay of Biscay Air-Sea interaction and hydrography

Institute: Instituto Español de Oceanografía – Spanish Institute of Oceanography

Name:

Daniel Cano – daniel.cano@st.ieo.es

Short SA Description:

Biscay AGL Observing System: AGL buoy and Ship sensor validation

The system is composed by a monthly ship-based hydrographical and biogeochemical station time series and an oceanic ODAS buoy. The buoy obtains core measurements of meteorological, physical, biogeochemical, and ecological data sets that, integrated with other observational systems, are crucial to weather forecasting and climate monitoring. The buoy data is immediately provided as a service through its web page (hourly). Monthly hydrographical cruises allow to investigate buoy sensors performance, and validate space-borne observations and forecast models. Research facilitated by this infrastructure includes the study of intermediate water masses variability, ocean-atmosphere interaction and the interaction between the upper and inner ocean.

SA Description:

The Santander standard section has been running from early 90’s as a series of monthly hydrographical time series under the broader IEO program RADIALES. This program was devised to provide hydrographical and biogeochemical series in marine waters around Spain and form part of the IEOOS (IEO Observing System). The sampling scheme was designed  to perform the sampling typically in 1-day journeys assisted by small ships, therefore the main focus was in the continental shelf. However, due to the proximity of the shelf-break in front of the city of Santander (SE Bay of Biscay) it was possible to gather a monthly series of intermediate waters since early 90’s in the outer stations. The sampling was limited to 1000 metre until late 2007, then it was extended to 1500 and since 2014, after the construction of a larger regional ship that is in charge of the sampling, it covers the full-depth 2400 m. The more than 25 years monthly time series of hydrographic data is a unique time series in the Bay of Biscay. It has been providing important information during that period and in combination with the AGL buoy complete the information in different time scales.

The Augusto Gonzalez de Linares oceano-meteorological buoy was set in 2007 nearby the so-called station 7 (the first one that can be considered open ocean; indeed, the only oceanic station that has been sampled with monthly frequency)

The combination of the monthly regular sampling and the AGL buoy provides us with a continuous status of the conditions of the oceanic waters in the region. Moreover, the existence of water samples nearby the buoy allows a monthly check and calibration of the sensors, this is of major importance for the less stable optical sensors as O2 and chlorophyll-fluorescence.

Visualisations:

SSS_anomaly

Figure 1 – Real time SSS anomaly (SSS_anomaly.png)

 

Figure 2 - Real time SST anomaly (WaterTemp_anomaly.png)

Figure 2 – Real time SST anomaly (WaterTemp_anomaly.png)

 

Figure 3 - Real time wave characterization. Hm0 vs Tp (Hm0Tp.png)

Figure 3 – Real time wave characterization. Hm0 vs Tp (Hm0Tp.png)

 

Figure 4 - Sub inertial currents (NowCurrent.png)

Figure 4 – Sub inertial currents (NowCurrent.png)

 

Figure 5 – Spectra (AGL_Spectra.png)

Figure 5 – Spectra (AGL_Spectra.png)

 

Figure 6 - Air-sea heat fluxes (Turbulent_Heat_Fluxes_AGLBuoy.png)

Figure 6 – Air-sea heat fluxes (Turbulent_Heat_Fluxes_AGLBuoy.png)

 

Figure 7 - Air-sea fresh water fluxes (evac_prec.jpg)

Figure 7 – Air-sea fresh water fluxes (evac_prec.jpg)

 

Figure 8 - Corrected oxygen (Oxy.png)

Figure 8 – Corrected oxygen (Oxy.png)

 

Figure 9 - Corrected chlorophyll (cla.png)

Figure 9 – Corrected chlorophyll (cla.png)

 

Figure 10 - TS crosscheck (SST_SSS.png)

Figure 10 – TS crosscheck (SST_SSS.png)

 

Figure 11 - QC meteorological sensors (Meteo_Crosscheck_AGLBuoy.png)

Figure 11 – QC meteorological sensors (Meteo_Crosscheck_AGLBuoy.png)

 

Figure 12 - Monthly heat content (CentralWatersTrends_St7.png)

Figure 12 – Monthly heat content (CentralWatersTrends_St7.png)

 

Figure 13 - Mixed layed depth estimation (MLD_St7_lastOcupationAGL.png)

Figure 13 – Mixed layed depth estimation (MLD_St7_lastOcupationAGL.png)

 

One click links to your SA:

Figures 1 & 2: http://www.boya_agl.st.ieo.es/boya_agl/sst.html

Figure 3: http://www.boya_agl.st.ieo.es/boya_agl/waveh.html

Figures 4 & 5: http://www.boya_agl.st.ieo.es/boya_agl/subinertial.html

Figures 6 & 7: http://www.boya_agl.st.ieo.es/boya_agl/heat.html

Figures 8, 9 & 10: http://www.boya_agl.st.ieo.es/boya_agl/ox.html

Figure 11: http://www.boya_agl.st.ieo.es/boya_agl/msensors.html

Figure 12: http://www.boya_agl.st.ieo.es/boya_agl/monthlyheat.html

Figure 13: http://www.boya_agl.st.ieo.es/boya_agl/mixed.html