Results 51 to 60 of about 365 (171)

Regional Land Surface Conditions Developed Using the High‐Resolution Land Data Assimilation System: Challenges Over Complex Orography Himalayan Region

Meteorological Applications, Volume 32, Issue 4, July/August 2025.
High‐resolution land data assimilation system (HRLDAS) simulations at 2 km resolution from 2011 to 2021 over Uttarakhand. HRLDAS outperforms global and regional analyses by capturing finer spatial heterogeneity, with lower soil moisture error and high soil temperature correlation (0.94) against satellite and in situ observations.
Buri Vinodhkumar, Krishna Kishore Osuri, A. P. Dimri, Sandipan Mukherjee, Sami G. Al‐Ghamdi, Dev Niyogi   +5 more
wiley   +1 more source

Influence of CyGNSS L2 wind data on tropical cyclone analysis and forecasts in the coupled HAFS/HYCOM system

Frontiers in Earth Science
This study examines the influence of NASA Cyclone Global Navigation Satellite System (CyGNSS) Level 2-derived 10 m (near-surface) wind speed over the ocean on analyses and forecasts within the NOAA operational Hurricane Analysis and Forecast System (HAFS)
Bachir Annane, Lewis J. Gramer
doaj   +1 more source

First Evaluation of Topography on GNSS-R: An Empirical Study Based on a Digital Elevation Model

Remote Sensing, 2019
Understanding the effects of Earth’s surface topography on Global Navigation Satellite Systems Reflectometry (GNSS-R) space-borne data is important to calibrate experimental measurements, so as to provide accurate soil moisture content (SMC ...
Hugo Carreno-Luengo, Guido Luzi, Michele Crosetto   +2 more
doaj   +1 more source

CYGNSS Satellite Sampling of Surface Heat Fluxes Across Atmospheric River Life Cycles

Geophysical Research Letters, Volume 52, Issue 10, 28 May 2025.
Abstract This study employs CYGNSS data to explore the life cycle of atmospheric rivers (ARs) on a near global scale, focusing on ocean surface turbulent heat flux variations. Using spaceborne measurements matched to different stages of full AR life cycles for the first time, we show declining latent and sensible heat fluxes throughout the AR life ...
Shakeel Asharaf, Bin Guan, Duane E. Waliser   +2 more
wiley   +1 more source

Tropical Cyclones Across Global Basins: Dynamics, Tracking Algorithms, Forecasting, and Emerging Scientometric Research Trends

Meteorological Applications, Volume 32, Issue 3, May/June 2025.
Graphical abstract illustrating the integrated framework of tropical cyclone dynamics, advanced tracking algorithms, and evolving research frontiers for improved forecasting and risk mitigation. ABSTRACT Tropical cyclones (TCs) pose significant threats to life and property across global ocean basins, and forecasting their structural evolution, track ...
Vivek Singh, Gaurav Tiwari, Amarendra Singh, Rajeeb Samanta, Atul Kumar Srivastava, Deewan Singh Bisht, Ashish Routray, Sushil Kumar, Shivaji Singh Patel, Abhishek Lodh   +9 more
wiley   +1 more source

Evaluation of Satellite-Based Global Navigation Satellite System Reflectometry (GNSS-R) Soil Moisture Products in Complex Terrain: A Case Study of the Yunnan–Guizhou Plateau

Remote Sensing
Complex terrain is one of the main factors affecting the process of retrieving surface soil moisture using GNSS-R technology. This study evaluates the impact of complex terrain on surface soil moisture inversion using Cyclone Global Navigation Satellite ...
Yixiao Liu, Yong Wang, Jingcheng Lai, Yunjie Lin, Leyan Shi   +4 more
doaj   +1 more source

Remotely Sensed High‐Resolution Soil Moisture and Evapotranspiration: Bridging the Gap Between Science and Society

Water Resources Research, Volume 61, Issue 5, May 2025.
Abstract This paper reviews the current state of high‐resolution remotely sensed soil moisture (SM) and evapotranspiration (ET) products and modeling, and the coupling relationship between SM and ET. SM downscaling approaches for satellite passive microwave products leverage advances in artificial intelligence and high‐resolution remote sensing using ...
Jingyi Huang, Vinit Sehgal, Laura V. Alvarez, Luca Brocca, Shuohao Cai, Rui Cheng, Xinghua Cheng, Jinyang Du, Bassil El Masri, K. Arthur Endsley, Yilin Fang, Jie Hu, Mahesh Jampani, Md Golam Kibria, Gerbrand Koren, Lingcheng Li, Laibao Liu, Jiafu Mao, Hernan A. Moreno, Angela Rigden, Mingjie Shi, Xiaoying Shi, Yaoping Wang, Xi Zhang, Joshua B. Fisher   +24 more
wiley   +1 more source

Rationale of GNSS Reflected Delay–Doppler Map (DDM) Distortions Induced by Specular Point Inaccuracies

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Global navigation satellite system reflectometry (GNSS-R)-derived winds from the cyclone GNSS (CYGNSS) satellite constellation are expected to significantly improve weather forecasts in the tropical region.
Giuseppe Grieco, Ad Stoffelen, Marcos Portabella   +2 more
doaj   +1 more source

Implications of CMIP6 Models‐Based Climate Biases and Runoff Sensitivity on Runoff Projection Uncertainties Over Central India

International Journal of Climatology, Volume 44, Issue 16, Page 5727-5744, 30 December 2024.
This paper presents a first‐ever assessment of the influence of diverse CMIP6 climate biases and associated runoff sensitivity on regional‐scale runoff projection uncertainty under non‐stationary climate. By employing variance decomposition, the study quantifies the uncertainty contribution of different components in the runoff modelling chain ...
Shoobhangi Tyagi, Sandeep Sahany, Dharmendra Saraswat, Saroj Kanta Mishra, Amlendu Dubey, Dev Niyogi   +5 more
wiley   +1 more source

Assessment of CYGNSS Wind Speed Retrieval Uncertainty

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Measurements of near surface wind speed made by the Cyclone Global Navigation Satellite System (CYGNSS) constellation of GNSS-R satellites are evaluated and their uncertainty is assessed in two ways. A bottom-up assessment begins with a model for the error in engineering measurements and propagates that error through the wind speed retrieval algorithm ...
Christopher S. Ruf, Scott Gleason 0001, Darren S. McKague   +2 more
openaire   +1 more source