Articles | Volume 13, issue 6
Research article
04 Jun 2019
Research article |  | 04 Jun 2019

Estimation of turbulent heat flux over leads using satellite thermal images

Meng Qu, Xiaoping Pang, Xi Zhao, Jinlun Zhang, Qing Ji, and Pei Fan

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Cited articles

Alam, A. and Curry, J. A.: Determination of surface turbulent fluxes over leads in Arctic sea ice, J. Geophys. Res.-Oceans, 102, 3331–3343, 1997. 
Alam, A. and Curry, J. A.: Evolution of new ice and turbulent fluxes over freezing winter leads, J. Geophys. Res.-Oceans, 103, 15783–15802, 1998. 
Andreas, E. L. and Cash, B. A.: Convective heat transfer over wintertime leads and polynyas, J. Geophys. Res.-Oceans, 104, 25721–25734, 1999. 
Andreas, E. L. and Murphy, B.: Bulk transfer coefficients for heat and momentum over leads and polynyas, J. Phys. Oceanogr., 16, 1875–1883, 1986. 
Andreas, E. L., Paulson, C. A., William, R. M., Lindsay, R. W., and Businger, J. A.: The turbulent heat flux from Arctic leads, Bound.-Lay. Meteorol., 17, 57–91, 1979. 
Short summary
Can we ignore the contribution of small ice leads when estimating turbulent heat flux? Combining bulk formulae and a fetch-limited model with surface temperature from MODIS and Landsat-8 Thermal Infrared Sensor (TIRS) images, we found small leads account for 25 % of the turbulent heat flux, due to its large total area. Estimated turbulent heat flux is larger from TIRS than that from MODIS with a coarser resolution and larger using a fetch-limited model than that using bulk formulae.