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Erratum published on 10 March 2016, see Atmosphere 2016, 7(3), 37.

Open AccessArticle
Atmosphere 2015, 6(9), 1346-1361; doi:10.3390/atmos6091346

A Method for Deriving the Boundary Layer Mixing Height from MODIS Atmospheric Profile Data

Key Laboratory of Digital Earth Science, Institute of Remote Sensing and Digital Earth (RADI),Chinese Academy of Sciences, Beijing 100101, China
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Author to whom correspondence should be addressed.
Academic Editor: John Boland
Received: 19 May 2015 / Revised: 27 August 2015 / Accepted: 8 September 2015 / Published: 15 September 2015
(This article belongs to the Special Issue Climate Variable Forecasting)
View Full-Text   |   Download PDF [4300 KB, uploaded 18 March 2016]   |  

Abstract

The planetary boundary layer is the medium of energy, moisture, momentum and pollutant exchange between the surface and the atmosphere. In this paper, a method to derive the boundary layer mixing height (MH) was introduced and applied over the Heihe river basin. Atmospheric profiles from the MODerate Resolution Imaging Sepctroradiometer (MODIS) instrument onboard the NASA-Aqua satellite were used for the high spatial resolution of this method. A gap-filling method was used to replace missing MODIS data. In situ MH data were also calculated from HIWATER (Heihe Watershed Allied Telemetry Experimental Research) and WATER (Watershed Allied Telemetry Experimental Research) observational radiosonde sounding data from 2008 and 2012 using the Richardson number method combined with a subjective method. The MH occurs where there is an abrupt decrease in the MR (water vapor mixing ratio). The minimum vertical gradient of the MR is used to determine the MH. The method has an average RMSE of 370 m under clear skies and convective conditions. The seasonal variation in the MH at the Gaoya radiosonde station is also presented. The study demonstrates that remote sensing methodologies can successfully estimate the MH without the help of field measurements. View Full-Text
Keywords: atmospheric boundary layer; mixing layer height; MODIS; radiosonde; remote sensing atmospheric boundary layer; mixing layer height; MODIS; radiosonde; remote sensing
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Feng, X.; Wu, B.; Yan, N. A Method for Deriving the Boundary Layer Mixing Height from MODIS Atmospheric Profile Data. Atmosphere 2015, 6, 1346-1361.

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