Results 31 to 40 of about 978 (179)
An Improved Method of Noise Subtraction for the CFOSAT Scatterometer
The microwave scatterometer onboard the China-France Oceanography Satellite (CFOSAT Scatterometer, CSCAT) is the first rotating fan-beam scatterometer (RFSCAT) in operation.
Kuo Zhang +5 more
doaj +1 more source
Dual-Mode Sea Ice Extent Retrieval for the Rotating Fan Beam Scatterometer
Scatterometers are highlighted in polar applications, such as sea ice extent retrieval. There are currently three types of spaceborne scatterometer in operation, among which the rotating pencil beam scatterometer and the rotating fan beam scatterometer ...
Liling Liu +3 more
doaj +1 more source
Evaluation of ISS-RapidScat Wind Vectors Using Buoys and ASCAT Data
The International Space Station scatterometer (named ISS-RapidScat) was launched by NASA on 20 September 2014 as a continuation of the QuikSCAT climate data record to maintain the availability of Ku-band scatterometer data after the QuikSCAT missions ...
Jungang Yang, Jie Zhang
doaj +1 more source
The Winds and Currents Mission Concept
The Winds and Currents Mission (WaCM) is a proposed approach to meet the need identified by the NRC Decadal Survey for the simultaneous measurements of ocean vector winds and currents. WaCM features a Ka-band pencil-beam Doppler scatterometer able to map
Ernesto Rodríguez +6 more
doaj +1 more source
On the Optimal Design of Doppler Scatterometers [PDF]
Pencil-beam Doppler scatterometers are a promising remote sensing tool for measuring ocean vector winds and currents from space. While several point designs exist in the literature, these designs have been constrained by the hardware they inherited, and the design is sub-optimal.
openaire +2 more sources
Polar Sea Ice Detection Using a Rotating Fan Beam Scatterometer
Scatterometers are dedicated to monitoring sea surface wind vectors, but they also provide valuable data for polar applications. As a new type of scatterometer, the rotating fan beam scatterometer delivers a higher diversity of incidence angles and more ...
Liling Liu +3 more
doaj +1 more source
The study evaluates five factors affecting the assimilation of surface‐sensitive Advanced Microwave Sounding Unit‐A (AMSU‐A) radiances over land, including the simultaneous estimation of surface emissivity and the standard set of state variables, to improve numerical weather prediction (NWP) at Environment and Climate Change Canada (ECCC).
Zheng Qi Wang +4 more
wiley +1 more source
For a spaceborne pencil-beam rotating Doppler scatterometer, its precision in measuring the ocean surface motion depends on the Doppler centroid of the received signals.
Jingyu Zhang, Xiaolong Dong, Di Zhu
doaj +1 more source
Exploiting Aeolus winds in a regional numerical weather prediction model
Aeolus measured winds have proven to be beneficial for global models. However, demonstrating positive impact for limited‐area models has been a challenge so far. For the first time, we have demonstrated a statistically significant positive impact of Aeolus winds in a limited‐area model by using the 4DVar data assimilation technique and the most recent ...
Gert‐Jan Marseille +3 more
wiley +1 more source
Evaluation of Sea Surface Wind Products from Scatterometer Onboard the Chinese HY-2D Satellite
The Chinese new marine dynamic environment satellite HY-2D was launched on 19 May 2021, carrying a Ku-band scatterometer (named HSCAT-D). In this study, wind products observed by the HSCAT-D were validated by comparing with wind data from the U.S ...
Sheng Yang +5 more
doaj +1 more source

