Assessment of the consistency among Global Microwave 1 Land Surface Emissivity Products

نویسندگان

  • H. Norouzi
  • M. Temimi
  • C. Prigent
  • J. Turk
  • R. Khanbilvardi
  • Y. Tian
  • H. Masunaga
چکیده

16 The goal of this work is to inter-compare four global land surface emissivity products over 17 various land-cover conditions to assess their consistency. The intercompared retrieved land 18 emissivity products were generated over five-year period (2003-2007) using observations from 19 the Advanced Microwave Scanning Radiometer Earth Observing System (AMSR-E), Special 20 Sensor Microwave Imager (SSM/I), The Tropical Rainfall Measuring Mission (TRMM) 21 Microwave Imager (TMI) and Windsat. First, all products were reprocessed in the same 22 projection and spatial resolution as they were generated from sensors with various 23 configurations. Then, the mean value and standard deviations of monthly emissivity values were 24 calculated for each product to assess the spatial distribution of the consistencies/inconsistencies 25 among the products across the globe. The emissivity products were also compared to soil 26

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Assessment of the consistency among global microwave land surface emissivity products

The goal of this work is to intercompare four global land surface emissivity products over various landcover conditions to assess their consistency. The intercompared land emissivity products were generated over a 5year period (2003–2007) using observations from the Advanced Microwave Scanning Radiometer – Earth Observing System (AMSR-E), the Special Sensor Microwave Imager (SSM/I), the Tropica...

متن کامل

Online Global Land Surface Temperature Estimation from Landsat

This study explores the estimation of land surface temperature (LST) for the globe from Landsat 5, 7 and 8 thermal infrared sensors, using different surface emissivity sources. A single channel algorithm is used for consistency among the estimated LST products, whereas the option of using emissivity from different sources provides flexibility for the algorithm’s implementation to any area of in...

متن کامل

Development of Global Land Surface Emissivity Map at Amsr-e Passive Microwave Frequencies

Microwave emissivity over ocean is relatively well understood by scientists. However, over land because of the existence of different land covers and their various physical properties land surface emissivity retrieval does not seem to be straightforward. Land emissivity plays a key role in Numerical Weather Prediction (NWP) models, since it acts like a crucial boundary condition. The accuracy o...

متن کامل

Treatment of Surface Emissivity for Satellite Microwave Data Assimilation

Observations from satellite microwave instruments have a large information content and are known to improve the quality of global analyses of the atmosphere. However, the use of these observations remains far from being optimal. Indeed, only microwave observations, for which the surface contribute the least, are currently assimilated. This restriction is mainly due to remaining uncertainties ab...

متن کامل

The sensitivity of land emissivity estimates from AMSR-E at C and X bands to surface properties

Microwave observations at low frequencies exhibit more sensitivity to surface and subsurface properties with little interference from the atmosphere. The objective of this study is to develop a global land emissivity product using passive microwave observations from the Advanced Microwave Scanning Radiometer – Earth Observing System (AMSR-E) and to investigate its sensitivity to land surface pr...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015