Interactive comment on “A microwave satellite water vapour column retrieval for polar winter conditions” by C. Perro et al
نویسنده
چکیده
Referee: This article describes an updated retrieval method to obtain water vapour columns in polar regions from the MHS and AMSU-B instruments. The improvements to current methods are described and the new method tested against synthetic and real data. The new method involves using a-priori information and iterating a radiative transfer model to optimise the optical depth profile by scaling the water vapour profile. The results are interesting and probably should be published I do however have some concerns.
منابع مشابه
A microwave satellite water vapour column retrieval for polar winter conditions
A new microwave satellite water vapour retrieval for the polar winter atmosphere is presented. The retrieval builds on the work of Miao et al. (2001) and Melsheimer and Heygster (2008), employing auxiliary information for atmospheric conditions and numerical optimization. It was tested using simulated and actual measurements from the Microwave Humidity Sounder (MHS) satellite instruments. Groun...
متن کاملMicrowave satellite water vapour column retrieval
Introduction Conclusions References Tables Figures
متن کاملRetrieval of daytime total columnar water vapour from MODIS measurements over land surfaces
A retrieval of total column water vapour (TCWV) from MODIS (Moderate-resolution Imaging Spectroradiometer) measurements is presented. The algorithm is adapted from a retrieval for MERIS (Medium Resolution Imaging Spectrometer) from Lindstrot et al. (2012). It obtains the TCWV for cloud-free scenes above land at a spatial resolution of 1 km× 1 km and provides uncertainties on a pixel-by-pixel ba...
متن کاملInteractive comment on “Evaluation of balloon and satellite water vapour measurements in theSouthern tropical UTLS during the HIBISCUS
The authors combine balloon-borne in situ measurements of water vapour in the tropical tropopause region during the HIBISCUS campaign with observational data of several satellite instruments. Although the performed measurements are of large scientific value, they are not presented well in the paper. The approach of evaluating different types of water vapour measurements is diluted by the way th...
متن کاملATSR Total Water Vapour Content Retrieval and Comparison with GOME and ATSR Microwave Sounder Data
The Water Vapour estimation from satellite data has been widely discussed in past years and different IR based techniques have been approached by various authors. In our work we estimate the total content of water vapour over sea surface by using ATSR-2 (Along Track Scanning Radiometer) Infra Red imagery. Two different retrieval methods have been applied: one proposed by Ottlé [1] in 1997 and t...
متن کامل