Zobrazeno 1 - 10
of 259
pro vyhledávání: '"Shaun Quegan"'
Autor:
Maurizio Santoro, Oliver Cartus, Shaun Quegan, Heather Kay, Richard M. Lucas, Arnan Araza, Martin Herold, Nicolas Labrière, Jérôme Chave, Åke Rosenqvist, Takeo Tadono, Kazufumi Kobayashi, Josef Kellndorfer, Valerio Avitabile, Hugh Brown, João Carreiras, Michael J. Campbell, Jura Cavlovic, Polyanna da Conceição Bispo, Hammad Gilani, Mohammed Latif Khan, Amit Kumar, Simon L. Lewis, Jingjing Liang, Edward T.A. Mitchard, Ana María Pacheco-Pascagaza, Oliver L. Phillips, Casey M. Ryan, Purabi Saikia, Dmitry Schepaschenko, Hansrajie Sukhdeo, Hans Verbeeck, Ghislain Vieilledent, Arief Wijaya, Simon Willcock, Frank Martin Seifert
Publikováno v:
Science of Remote Sensing, Vol 10, Iss , Pp 100169- (2024)
The increase in Earth observations from space in recent years supports improved quantification of carbon storage by terrestrial vegetation and fosters studies that relate satellite measurements to biomass retrieval algorithms. However, satellite obse
Externí odkaz:
https://doaj.org/article/fc38ac135dba43fbb5a517afff1735ec
Deforestation in Latin America in the 2000s predominantly occurred outside of typical mature forests
Autor:
Zhiyu Zhang, Wenjian Ni, Shaun Quegan, Jingming Chen, Peng Gong, Luiz Carlos Estraviz Rodriguez, Huadong Guo, Jiancheng Shi, Liangyun Liu, Zengyuan Li, Yating He, Qinhuo Liu, Yosio Shimabukuro, Guoqing Sun
Publikováno v:
The Innovation, Vol 5, Iss 3, Pp 100610- (2024)
The role of tropical forests in the global carbon budget remains controversial, as carbon emissions from deforestation are highly uncertain. This high uncertainty arises from the use of either fixed forest carbon stock density or maps generated from
Externí odkaz:
https://doaj.org/article/f43a46ca911a44e3a0b4a0befd449248
Autor:
Osamu Ochiai, Benjamin Poulter, Frank Martin Seifert, Stephen Ward, Ian Jarvis, Alyssa Whitcraft, Ritvik Sahajpal, Sven Gilliams, Martin Herold, Sarah Carter, Laura Innice Duncanson, Heather Kay, Richard Lucas, Sylvia N. Wilson, Joana Melo, Joanna Post, Stephen Briggs, Shaun Quegan, Mark Dowell, Alessandro Cescatti, David Crisp, Sassan Saatchi, Takeo Tadono, Matt Steventon, Ake Rosenqvist
Publikováno v:
iScience, Vol 26, Iss 4, Pp 106489- (2023)
Summary: Space-based remote sensing can make an important contribution toward monitoring greenhouse gas emissions and removals from the agriculture, forestry, and other land use (AFOLU) sector, and to understanding and addressing human-caused climate
Externí odkaz:
https://doaj.org/article/20b4f4d80315419ca970dacb8b40944c
Autor:
Michaela I. Hegglin, Ana Bastos, Heinrich Bovensmann, Michael Buchwitz, Dominic Fawcett, Darren Ghent, Gemma Kulk, Shubha Sathyendranath, Theodore G. Shepherd, Shaun Quegan, Regine Röthlisberger, Stephen Briggs, Carlo Buontempo, Anny Cazenave, Emilio Chuvieco, Philippe Ciais, David Crisp, Richard Engelen, Suvarna Fadnavis, Martin Herold, Martin Horwath, Oskar Jonsson, Gabriel Kpaka, Christopher J. Merchant, Christian Mielke, Thomas Nagler, Frank Paul, Thomas Popp, Tristan Quaife, Nick A. Rayner, Colas Robert, Marc Schröder, Stephen Sitch, Sara Venturini, Robin van der Schalie, Mendy van der Vliet, Jean-Pierre Wigneron, R. Iestyn Woolway
Publikováno v:
Frontiers in Environmental Science, Vol 10 (2022)
Space-based Earth observation (EO), in the form of long-term climate data records, has been crucial in the monitoring and quantification of slow changes in the climate system—from accumulating greenhouse gases (GHGs) in the atmosphere, increasing s
Externí odkaz:
https://doaj.org/article/cb6f104172254f04ab6aa2da68a768f1
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 4089-4100 (2021)
This article analyses the effects of system distortions (crosstalk and channel imbalance), Faraday rotation and system noise on estimates of the cross-polarized backscattering coefficient, ${\boldsymbol{\sigma }}_{{{\bf hv}}}^0$, by a spaceborne synt
Externí odkaz:
https://doaj.org/article/977d0bcbfeb04bc9a68803150c819ec0
Autor:
Neha Hunka, Maurizio Santoro, John Armston, Ralph Dubayah, Ronald E McRoberts, Erik Næsset, Shaun Quegan, Mikhail Urbazaev, Adrián Pascual, Paul B May, David Minor, Veronika Leitold, Paromita Basak, Mengyu Liang, Joana Melo, Martin Herold, Natalia Málaga, Sylvia Wilson, Patricia Durán Montesinos, Alexs Arana, Ricardo Ernesto De La Cruz Paiva, Jeremy Ferrand, Somphavy Keoka, Juan Guerra-Hernández, Laura Duncanson
Publikováno v:
Environmental Research Letters, Vol 18, Iss 12, p 124042 (2023)
Earth Observation data are uniquely positioned to estimate forest aboveground biomass density (AGBD) in accordance with the United Nations Framework Convention on Climate Change (UNFCCC) principles of ‘transparency, accuracy, completeness, consiste
Externí odkaz:
https://doaj.org/article/313b02842b7a4bad987f903e2b855da9
Publikováno v:
Environmental Research Letters, Vol 18, Iss 3, p 034021 (2023)
The Earth observation (EO) community is coordinating a range of activities in support of the Global Stocktake. One objective is to enhance the uptake of satellite-based global-scale maps (hereafter ‘EO products’) in national greenhouse gas (GHG)
Externí odkaz:
https://doaj.org/article/437ba4c48d894642957f4d0e6b80d0d9
Publikováno v:
Remote Sensing, Vol 14, Iss 1, p 179 (2022)
Tropical forests play a key role in the global carbon and hydrological cycles, maintaining biological diversity, slowing climate change, and supporting the global economy and local livelihoods. Yet, rapidly growing populations are driving continued d
Externí odkaz:
https://doaj.org/article/00fc66d8f096496c952760991fcadc35
Autor:
Pedro Rodríguez-Veiga, Joao Carreiras, Thomas Luke Smallman, Jean-François Exbrayat, Jamleck Ndambiri, Faith Mutwiri, Divinah Nyasaka, Shaun Quegan, Mathew Williams, Heiko Balzter
Publikováno v:
Remote Sensing, Vol 12, Iss 15, p 2380 (2020)
The characterization of carbon stocks and dynamics at the national level is critical for countries engaging in climate change mitigation and adaptation strategies. However, several tropical countries, including Kenya, lack the essential information t
Externí odkaz:
https://doaj.org/article/9eefc07ff6424b0b811646d1d9e0fd81
Autor:
Francesco Banda, Davide Giudici, Thuy Le Toan, Mauro Mariotti d’Alessandro, Kostas Papathanassiou, Shaun Quegan, Guido Riembauer, Klaus Scipal, Maciej Soja, Stefano Tebaldini, Lars Ulander, Ludovic Villard
Publikováno v:
Remote Sensing, Vol 12, Iss 6, p 985 (2020)
BIOMASS is ESA’s seventh Earth Explorer mission, scheduled for launch in 2022. The satellite will be the first P-band SAR sensor in space and will be operated in fully polarimetric interferometric and tomographic modes. The mission aim is to map fo
Externí odkaz:
https://doaj.org/article/8b97186a342d4526877f8eaeeda16a05