Results 91 to 100 of about 3,815 (246)

UAV based GNSS reflectometry

, 2023
Objectius de Desenvolupament Sostenible::11 - Ciutats i Comunitats ...
openaire   +1 more source

Calibration of an apparent electrical conductivity sensor using capacitance probes for determining soil water content

Soil Science Society of America Journal, Volume 89, Issue 1, January/February 2025.
Abstract Soil apparent electrical conductivity (ECa) measurements, although more suitable for soil salinity quantification, are often used to determine volumetric soil water content, θv, in site‐specific crop management. Generally, the approach is to develop a field‐specific calibration function between ECa and measured θv, θv(m).
J. H. Barnard, J. A. Edeh, L. D. van Rensburg, C. C. du Preez   +3 more
wiley   +1 more source

Coastal Flooding in Asian Megadeltas: Recent Advances, Persistent Challenges, and Call for Actions Amidst Local and Global Changes

Reviews of Geophysics, Volume 62, Issue 4, December 2024.
Abstract Asian megadeltas, specifically the Ganges‐Brahmaputra‐Meghna, Irrawaddy, Chao Phraya, Mekong, and Red River deltas host half of the world's deltaic population and are vital for Asian countries' ecosystems and food production. These deltas are extremely vulnerable to global change. Accelerating relative sea‐level rise, combined with rapid socio‐
M. Becker, K. Seeger, A. Paszkowski, M. Marcos, F. Papa, R. Almar, P. Bates, C. France‐Lanord, Md S. Hossain, Md J. U. Khan, M. A. Karegar, M. Karpytchev, N. Long, P. S. J. Minderhoud, J. Neal, R. J. Nicholls, J. Syvitski   +16 more
wiley   +1 more source

Hydrology on Solid Grounds? Integration Is Key to Closing Knowledge Gaps Concerning Landscape Subsurface Water Storage Dynamics

Hydrological Processes, Volume 38, Issue 11, November 2024.
An increasingly wide and diverse range of observational products of landscape subsurface water storage dynamics is maturing, while new ones are still being added; depicted here from cosmic‐ray neutron sensing (CRNS) to satellite missions such as GRACE‐FO and CYGNSS.
Sascha E. Oswald, Lisa Angermann, Heye R. Bogena, Michael Förster, Almudena García‐García, Gunnar Lischeid, Eva N. Paton, Daniel Altdorff, Sabine Attinger, Andreas Güntner, Andreas Hartmann, Harrie‐Jan Hendricks Franssen, Anke Hildebrandt, Birgit Kleinschmit, Rene Orth, Jian Peng, Masahiro Ryo, Martin Schrön, Wolfgang Wagner, Thorsten Wagener   +19 more
wiley   +1 more source

Integrating Advanced Sensor Technologies for Enhanced Agricultural Weather Forecasts and Irrigation Advisories: The MAGDA Project Approach

Remote Sensing
Weather forecasting is essential for agriculture, yet current methods often lack the localized accuracy required to manage extreme weather events and optimize irrigation.
Martina Lagasio, Stefano Barindelli, Zenaida Chitu, Sergio Contreras, Amelia Fernández-Rodríguez, Martijn de Klerk, Alessandro Fumagalli, Andrea Gatti, Lukas Hammerschmidt, Damir Haskovic, Massimo Milelli, Elena Oberto, Irina Ontel, Julien Orensanz, Fabiola Ramelli, Francesco Uboldi, Aso Validi, Eugenio Realini   +17 more
doaj   +1 more source

Retrieval of Ocean Surface Wind Speed Using Reflected BPSK/BOC Signals

Remote Sensing, 2020
The Global Navigation Satellite System (GNSS) has become a valuable resource as a remote sensing technique. In the past decade, the use of reflected GNSS signals for sensing the Earth, also known as GNSS reflectometry (GNSS-R), has grown rapidly.
Hao-Yu Wang, Jyh-Ching Juang
doaj   +1 more source

The Potential of Hydrogeodesy to Address Water‐Related and Sustainability Challenges

Water Resources Research, Volume 60, Issue 11, November 2024.
Abstract Increasing climatic and human pressures are changing the world's water resources and hydrological processes at unprecedented rates. Understanding these changes requires comprehensive monitoring of water resources. Hydrogeodesy, the science that measures the Earth's solid and aquatic surfaces, gravity field, and their changes over time ...
Fernando Jaramillo, Saeid Aminjafari, Pascal Castellazzi, Ayan Fleischmann, Etienne Fluet‐Chouinard, Hossein Hashemi, Clara Hubinger, Hilary R. Martens, Fabrice Papa, Tilo Schöne, Angelica Tarpanelli, Vili Virkki, Lan Wang‐Erlandsson, Rodrigo Abarca‐del‐Rio, Adrian Borsa, Georgia Destouni, Giuliano Di Baldassarre, Michele‐Lee Moore, José Andrés Posada‐Marín, Shimon Wdowinski, Susanna Werth, George H. Allen, Donald Argus, Omid Elmi, Luciana Fenoglio, Frédéric Frappart, Xander Huggins, Zahra Kalantari, Simon Munier, Sebastián Palomino‐Ángel, Abigail Robinson, Kristian Rubiano, Gabriela Siles, Marc Simard, Chunqiao Song, Christopher Spence, Mohammad J. Tourian, Yoshihide Wada, Chao Wang, Jida Wang, Fangfang Yao, Wouter R. Berghuijs, Jean‐François Cretaux, James Famiglietti, Alice Fassoni‐Andrade, Jessica V. Fayne, Félix Girard, Matti Kummu, Kristine M. Larson, Martin Marañon, Daniel M. Moreira, Karina Nielsen, Tamlin Pavelsky, Francisco Pena, J. T. Reager, Maria Cristina Rulli, Juan F. Salazar   +56 more
wiley   +1 more source

Review of Assimilating Spaceborne Global Navigation Satellite System Remote Sensing Data for Tropical Cyclone Forecasting

Remote Sensing
Global Navigation Satellite System (GNSS) Radio Occultation (RO) and GNSS Reflectometry (GNSS-R) are the two major spaceborne GNSS remote sensing (GNSS-RS) techniques, providing observations of atmospheric profiles and the Earth’s surface. With the rapid
Weihua Bai, Guanyi Wang, Feixiong Huang, Yueqiang Sun, Qifei Du, Junming Xia, Xianyi Wang, Xiangguang Meng, Peng Hu, Cong Yin, Guangyuan Tan, Ruhan Wu   +11 more
doaj   +1 more source

Diurnal Vegetation Moisture Cycle in the Amazon and Response to Water Stress

Geophysical Research Letters, Volume 51, Issue 19, 16 October 2024.
Abstract Water stress in the Amazon is exacerbated by rising temperatures and reduced moisture levels. However, understanding forest responses to increased aridity is hindered by limited in situ water potential observations in the Amazon. Remote sensing of water content has emerged as a promising metric.
Milad Asgarimehr, Dara Entekhabi, Adriano Camps   +2 more
wiley   +1 more source

On Small Satellites for Oceanography: A Survey [PDF]

, 2015
The recent explosive growth of small satellite operations driven primarily from an academic or pedagogical need, has demonstrated the viability of commercial-off-the-shelf technologies in space. They have also leveraged and shown the need for development
Agelet, Fernando Aguado, Bertolami, Orfeu, Francisco, Frederico, Guerra, André G. C., Rajan, Kanna, Villate, Jaime   +5 more
core   +3 more sources