Results 41 to 50 of about 142 (121)

Towards operational assimilation of surface‐sensitive microwave radiances over land at Environment and Climate Change Canada: Investigation of key factors using a 1D‐EnVar framework

Quarterly Journal of the Royal Meteorological Society, EarlyView.
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, Mark Buehner, Yi Huang, Maziar Bani Shahabadi, Joël Bédard   +4 more
wiley   +1 more source

Observed Atmospheric Features for the 2022 Hunga Tonga Volcanic Eruption from Joint Polar Satellite System Science Data Products

Atmosphere, 2023
The Joint Polar Satellite System (JPSS) mission has provided over ten years of high-quality data products for environment forecasting and monitoring through the current Suomi National Polar-orbiting Partnership (S-NPP) and NOAA-20 satellites ...
Lihang Zhou, Banghua Yan, Ninghai Sun, Jingfeng Huang, Quanhua Liu, Christopher Grassotti, Yong-Keun Lee, William Straka, Jianguo Niu, Amy Huff, Satya Kalluri, Mitch Goldberg   +11 more
doaj   +1 more source

Stratospheric and tropospheric seasonality and its implications for observation requirements in numerical weather prediction

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Daily time series of zonal‐mean zonal wind (m·s−1) at 10 hPa and 60° N from 1950 to 2021 from the ERA5 reanalysis. This shows huge variability in some seasons and very little in others. We provide evidence that high‐level observations, radiosonde and satellite, are more important during the extended winter season with its very large variability ...
Bruce Ingleby, Inna Polichtchouk
wiley   +1 more source

An Assessment of Data from the Advanced Technology Microwave Sounder at the Met Office

Advances in Meteorology, 2015
An appraisal of the Advanced Technology Microwave Sounder (ATMS) for use in numerical weather prediction (NWP) is presented, including an assessment of the data quality, the impact on Met Office global forecasts in preoperational trials, and a summary of
Amy Doherty, Nigel Atkinson, William Bell, Andrew Smith   +3 more
doaj   +1 more source

The NOAA Microwave Integrated Retrieval System (MiRS): Validation of Precipitation From Multiple Polar-Orbiting Satellites

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
This article describes a multisatellite validation study of precipitation from the microwave integrated retrieval system (MiRS). MiRS is a variational algorithm designed to process passive microwave measurements using a common core of retrieval software,
Shuyan Liu, Christopher Grassotti, Quanhua Liu, Yong-Keun Lee, Ryan Honeyager, Yan Zhou, Ming Fang   +6 more
doaj   +1 more source

Advancing Atmospheric Thermodynamic Sounding From Space Using Hyperspectral Microwave Measurements

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
In this article, we present a comprehensive sensitivity analysis and geophysical retrieval product demonstration to assess the enhanced information content in atmospheric temperature and water vapor, harnessed in hyperspectral microwave measurements.
Antonia Gambacorta, Jeffrey Piepmeier, Mark Stephen, Joseph Santanello, John Blaisdell, Isaac Moradi, William McCarty, Robert Rosenberg, Alexander Kotsakis, Fabrizio Gambini, Priscilla Mohammed, Rachael Kroodsma, James MacKinnon, Ian Adams, Paul Racette   +14 more
doaj   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

Journal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang, Hao Zhou, Dalin Zhou, Zhaojie Ju   +3 more
wiley   +1 more source

Automated Lawn Maintenance: An Agronomic and Operational Review of Turf Health, Biodiversity, and Field Performance

Journal of Field Robotics, EarlyView.
ABSTRACT Grass mowing is one of the most resource‐consuming activities in green maintenance, whether in private areas such as home gardens or in public spaces like urban parks. In recent years, concerns related to climate change, human health, and sustainability have become increasingly prominent in green maintenance, leading manufacturers and industry
Andrea Palladini, Lorenzo Guerrini, Marco Fontanelli, Lucia Bortolini   +3 more
wiley   +1 more source

ML-driven cross-calibration of microwave and infrared instruments

Machine Learning. Earth
Microwave (MW) and infrared (IR) observations are fundamental for weather forecasting, climate monitoring, and atmospheric sounding. Traditionally, inter-calibration efforts have focused on harmonizing measurements between similar instruments or within ...
Isaac Moradi, Satya Kalluri
doaj   +1 more source

Improving ATMS Imagery Visualization Using Limb Correction and AI Resolution Enhancement

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The advanced technology microwave sounder (ATMS) is an important satellite instrument that provides vital data on atmosphere temperature and moisture for weather forecasting and climate research, and helps us plan for extreme weather. However, its coarse
Xingming Liang, Lihang Zhou, Mitch Goldberg, Satya Kalluri, Christopher Grassotti, Ninghai Sun, Banghua Yan, Hu Yang, Lin Lin, Quanhua Liu   +9 more
doaj   +1 more source