1. Sea Surface Temperature from satellite radiometers (3)
Pierre Le Borgne
Météo-France/DP/CMS, Lannion

2. Plan (1) Applications Diurnal warming (2) Ocean dynamics Other…
Introduction
Products
SST retrieval methods
Validation
Saharan Dust
Applications
Diurnal warming
Ocean dynamics
Other…
Conclusion
(1)
(2)
(3)
14 December 2012
UBO Master course

3. Geostationary Polar orbiters
Diurnal Warming
Geostationary
Polar orbiters

4. Buoy: 61854; lat 38.27; lon 6.30 Péré et al, Sept. 2011
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5. 62100 lat 42.10 lon 4.7 Péré et al, Sept. 2011 14 December 2012
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6. SEVIRI and drifting buoy DW (all amplitudes > 0.5K)
Summer 2011
All daily cycles with SEVIRI or drifting buoy
Daily DWmax> 0.5K
2011/08/03
Drifter: 61787
3 Hours
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UBO Master course

7. DW mysteries
LeBorgne et al,
2012
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8. Bellenger et al,
Nov. 2011
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9. Zone definition Med. N. Atl B C D A E F G H I N Subtrop. N. Indian
Intertrop.
Mozambique
S. Subtrop.
S. Indian
S. Atl.
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10. DW amplitudes per zone (Atl.)
Med.
N. Atl
N. Subtrop. Atl.
N/S symmetry
Anomaly?
Intertrop. Atl.
S. Subtrop. Atl.
S. Atl.
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11. DW amplitudes per zone (Indian)
Intertropical anomaly?
N. Indian
Not in the Moz. area
Moz.
Similar to subtropical
Atlantic
S. Indian
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12. DW modelisation
D. Ciani, 2012
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13. DW modelisation
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14. Polar orbiter DW
VALIDATION??
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15. Structure analysis METOP AVHRR SST + ASCAT WIND 20080702-1210
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16. ARCTIC: JULY 2008 Siberia Kara Beaufort South Barents Baltic Hudson
Baffin
South
Barents
Baltic
Kara
Monthly cumulated DW
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17. ANTARCTIC: JANUARY 2010 Biscoe Atlantic Mc Kenzie Indian Pacific Ross
Monthly cumulated DW
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18. Typical cycle in the Mediterranean Sea (August 2010)
En cours:
morning time lag?
DW Geographical
distribution
Metop LST
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19. Diurnal warming: references
Filipiak, M.J., C. J. Merchant, H. Kettle and P. Le Borgne (2010). A statistical model for sea surface diurnal warming driven by numerical weather prediction fluxes and winds Ocean Sci. Discuss., 7, 1497–1532,
Gentemann, C. L., P. J. Minnett, P. Le Borgne, and C. J. Merchant (2008), Multi-satellite measurements of large diurnal warming events, Geophys. Res. Lett., 35, L22602, doi: /2008GL
Merchant, C. J., M. J. Filipiak, P. Le Borgne, H. Roquet, E. Autret, J.-F. Piolle, and S. Lavender (2008), Diurnal warm-layer events in the western Mediterranean and European shelf seas, Geophys. Res. Lett., 35, L04601, doi: /2007GL
Pierre Le Borgne, Gérard Legendre, Sonia Péré (2012), Comparison of MSG/SEVIRI and drifting buoy derived diurnal warming estimates, Remote Sensing of Environment, Volume 124, September 2012, Pages
Steinar Eastwood, Pierre Le Borgne, Sonia Péré, David Poulter, Diurnal variability in sea surface temperature in the Arctic Remote Sensing of Environment, 115, 10,
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UBO Master course