Geophysical Model Function for the AMSR2 C-Band Wind Excess Emissivity at High Winds
نویسندگان
چکیده
منابع مشابه
The Improved C - Band Geophysical Model Function Cmod 5
This paper describes the performance of CMOD5, a new C-band geophysical model function, relating scatterometer backscatter to surface vector wind information over the global oceans. It was derived on the basis of a comparison of scatterometer triplets from the Active Microwave Instrument (AMI) aboard the ERS-2 satellite with collocated ECMWF first-guess winds. In addition, results from recent a...
متن کاملAn L-band geophysical model function for SAR wind retrieval using JERS-1 SAR
An L-band geophysical model function is developed using Japanese Earth Resources Satellite-1 (JERS-1) synthetic aperture radar (SAR) data. First, we estimate the SAR system noise, which has been a serious problem peculiar to the JERS-1 SAR. It is found that the system noise has a feature common in all the SAR images and that the azimuth-averaged profile of noise can be expressed as a parabolic ...
متن کاملA Scatterometer Geophysical Model Function for Climate-Quality Winds: QuikSCAT Ku-2011
Space-based observations of ocean surface winds have been available for more than 25 years. To combine the observations from multiple sensors into one record with the accuracy required for climate studies requires a consistentmethodology and calibration standard for the various instruments. This study describes a new geophysical model function (GMF) specifically developed for preparing the Quik...
متن کاملHigh Resolution Ocean Surface Wind Fields Retrieved from Spaceborne Synthetic Aperture Radars Operating at C-band
This paper introduces algorithms designed to retrieve high-resolution ocean surface wind fields from satellite borne synthetic aperture radars (SARs) operating in C-band at either vertical (VV) or horizontal (HH) polarization in transmit and receive. Wind directions are extracted from wind induced streaks that are visible in SAR images at scales above 200 m and that are approximately in line wi...
متن کاملThe effect of atmospheric stability on microwave excess emissivity due to wind
The excess microwave emissivity of the ocean surface due to winds at nadir incidence is derived from the TOPEX microwave radiometer and altimeter together with ocean surface data. The sensitivity of emissivity to wind speed is found to depend strongly on the air–sea temperature difference.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Geoscience and Remote Sensing Letters
سال: 2016
ISSN: 1545-598X,1558-0571
DOI: 10.1109/lgrs.2015.2497463