Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 4, pp. 186-193
Retrieval of surface air temperature during cold air outbreaks
on the example of the Bering Sea using AMSU-A measurements
V.I. Il`ichev Pacific Oceanological Institute Far Eastern Branch Russian Academy of Scinces, 690041, Vladivostok, Baltiyskaya, 43
Determination of the turbulent heat fluxes over high latitude regions becomes more actual problem. The calculation
of these fluxes requires the use of bulk aerodynamic method requiring estimates of the sea surface temperature (Tw),
near-surface wind speed (W), air temperature (ta), and specific humidity (qa). Errors in algorithms of satellite retrievals
of near -surface parameters have been shown to be the main sources of uncertainty in computation of the fluxes. This
work describes regression algorithm of the retrieving ta over the Bering Sea. The algorithm is based on relationship between
ta and brightness temperature at a frequency 52.8 GHz (Tb52.8) observed from the Advanced Microwave Sounding
Unit-A (AMSU-A) onboard NOAA satellites. Modeling of the Tb52.8 has shown that relationship becomes closer
if the brightness temperature corrected for the influence of cloud liquid water and surface wind speed. The regression
coefficients were obtained from a collocated array of satellite data and measurements of ocean buoys in the Bering
Sea during cold air outbreaks. RMS error of the air temperature algorithm is 1,71 K for the collocated array. Also, the
use of the air temperature algorithm during cold air outbreak over the Bering Sea is shown. Estimates of the turbulent
sensible heat fluxes from satellite measurements were obtained
Keywords: air-sea interaction, turbulent fluxes, AMSU-A, brightness temperatures, air temperature, cold air outbreaks, Bering Sea
Full textReferences:
- Mitnik L.M., Mitnik M.L., Issledovanie Zemli iz kosmosa, 2011, No. 6, pp. 34–44.
- Pichugin M.K., 9-ya Vserossiiskaya otkrytaya ezhegodnaya konf. “Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa” (Proc. 9th All-Russian Open Conference “Actual problems in remote sensing of the Earth from space”), Moscow, IKI RAN, 14-18 November 2011.
- Pichugin M.K., Mitnik L.M., Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2009, Vol. 6, No. 2, pp. 172–179.
- Bobylev L. P., Zabolotskikh E.V., Mitnik L.M., Mitnik M.L., Atmospheric water vapor and cloud liquid water retrieval over the Arctic Ocean using satellite passive microwave sensing, IEEE Trans. Geoscience and Remote Sensing, 2010, Vol. 49, No. 1, pp. 283–294.
- Brümmer B., Müller G., Noer G., A Polar Low Pair over the Norwegian Sea, Monthly Weather Review, 2009, Vol. 137, No. 8, pp. 2559–2575.
- Fairall C.W., Bradley E.F., Hare J.E., Grachev A.A., Edson J.B., Bulk Parameterization of Air–Sea Fluxes: Updates and Verification for the COARE Algorithm, Journal of Climate, 2003, Vol. 16, No. 4, pp. 571–591.
- Goldberg M.D., Crosby D.S., Zhou L., The Limb Adjustment of AMSU-A Observations: Methodologyand Validation, Journal of Applied Meteorology and Climatology, 2001, Vol. 40, No. 1, pp. 70–83.
- Jackson D.L., Wick G.A., Bates J.J., Near-surface retrieval of air temperature and specific humidity using multisensor microwave satellite observations, Journal of Geophysical Research, 2006, Vol. 111, D101306, p. 16.
- Jones C., Peterson P., Gautier C., A new method for deriving ocean surface specific humidity and air temperature: An artificial neural network approach, Journal of Applied Meteorology and Climatology, 1999, Vol. 38, No. 8, pp. 1229–1246.
- Reynolds R.W., Smith T.M., Liu C., Chelton D.B., Casey K.S., Schlax M.G., Daily High Resolution Blended Analyses for Sea Surface Temperature, Journal of Climate, 2007, Vol. 20.
- Shakhova N., Semiletov I., Salyuk A., Yusupov V., Kosmach D., Gustafsson Ö., Extensive Methane Venting to the Atmosphere from Sediments of the East Siberian Arctic Shelf, Science, 2010, Vol. 327, No. 5970, pp. 1246–1250.
- Singh R., Joshi P.C., Kishtawal C.M., A New Technique for Estimation of Surface Latent Heat Fluxes Using Satellite-Based Observations, Monthly Weather Review, 2005, Vol. 133, No. 9, pp. 2692–2710.
- Uttal T., Curry J.A., Mcphee M.G., Perovich D.K., Moritz R.E., Maslanik J.A., Guest P.S., Stern H.L., Moore J.A., Turenne R., Heiberg A., Serreze M.C., Wylie D.P., Persson O.G., Paulson C.A., Halle C., Morison J.H., Wheeler P.A., Makshtas A., Welch H., Shupe M.D., Intrieri J.M., Stamnes K., Lindsey R.W., Pinkel R., Pegau W.S., Stanton T.P., Grenfell T.C., Surface Heat Budget of the Arctic Ocean, Bul. American Meteorological Soc., 2002, Vol. 83, No. 2, pp. 255–275.