Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Thomas Hilker"'
Publikováno v:
Sensors, Vol 15, Iss 12, Pp 32020-32030 (2015)
Understanding plant photosynthesis, or Gross Primary Production (GPP), is a crucial aspect of quantifying the terrestrial carbon cycle. Remote sensing approaches, in particular multi-angular spectroscopy, have proven successful for studying relations
Externí odkaz:
https://doaj.org/article/886ff76ae6cd4a068a2da166ec02bc83
Publikováno v:
Remote Sensing, Vol 5, Iss 12, Pp 6346-6360 (2013)
High spatiotemporal resolution satellite imagery is useful for natural resource management and monitoring for land-use and land-cover change and ecosystem dynamics. However, acquisitions from a single satellite can be limited, due to trade-offs in ei
Externí odkaz:
https://doaj.org/article/ff1eeb7ddca34d1089c1050c6ba08cd8
Autor:
Fabien Hubert Wagner, Bruno Hérault, Vivien Rossi, Thomas Hilker, Eduardo Eiji Maeda, Alber Sanchez, Alexei I Lyapustin, Lênio Soares Galvão, Yujie Wang, Luiz E O C Aragão
Publikováno v:
PLoS ONE, Vol 12, Iss 7, p e0180932 (2017)
Our limited understanding of the climate controls on tropical forest seasonality is one of the biggest sources of uncertainty in modeling climate change impacts on terrestrial ecosystems. Combining leaf production, litterfall and climate observations
Externí odkaz:
https://doaj.org/article/7f54d5da3a534668b913af6e8ed2c06f
Autor:
Michael A. Wulder, Joanne C. White, Nicholas C. Coops, Gregory J. McDermid, Thomas Hilker, Steven E. Franklin
Publikováno v:
Ambiência, Vol 4, Iss Especial, Pp 137-145 (2008)
Forest management and reporting information needs are becomingincreasingly complex in Canada. Inclusion of timber and non-timber considerations for both management and reporting has resulted inopportunities for integration of data from differing sour
Externí odkaz:
https://doaj.org/article/4921e3f6f8f2401393c3659f98cdfaa4
Publikováno v:
Remote Sensing, Vol 9, Iss 2, p 179 (2017)
The spatial distribution of disturbances in Andean tropical forests and protected areas has commonly been calculated using bi or tri-temporal analysis because of persistent cloud cover and complex topography. Long-term trends of vegetative decline (b
Externí odkaz:
https://doaj.org/article/d45904a671df4ee7aac477c1da9a420e
Autor:
Celio Helder Resende de Sousa, Thomas Hilker, Richard Waring, Yhasmin Mendes de Moura, Alexei Lyapustin
Publikováno v:
Remote Sensing, Vol 9, Iss 1, p 48 (2017)
Although quantifying the massive exchange of carbon that takes place over the Amazon Basin remains a challenge, progress is being made as the remote sensing community moves from using traditional, reflectance-based vegetation indices, such as the Nor
Externí odkaz:
https://doaj.org/article/710c892469f44805b1c679f802a31ffb
Autor:
Edgard Siza Tribuzy, João Vitor Barbosa Ceron, N. Prohaska, Alexei Lyapustin, Thomas Hilker, Victor Alexandre Hardt Ferreira dos Santos, José Francisco de Carvalho Gonçalves, Luiz E. O. C. Aragão, Yhasmin Mendes de Moura, João Victor Figueiredo Cardoso Rodrigues, Loren P. Albert, Lênio Soares Galvão, Jin Wu, Raimundo Cosme de Oliveira Junior, Yujie Wang, Maquelle Neves Garcia, Scott R. Saleska, Marciel José Ferreira, Cibele Hummel do Amaral, Liana O. Anderson
Publikováno v:
International Journal of Applied Earth Observation and Geoinformation. 58:278-287
As a preparatory study for future hyperspectral missions that can measure canopy chemistry, we introduce a novel approach to investigate whether multi-angle Moderate Resolution Imaging Spectroradiometer (MODIS) data can be used to generate a prelimin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0e99e975ed6997ebe75d880a618fd6a
https://doi.org/10.1016/j.jag.2017.01.014
https://doi.org/10.1016/j.jag.2017.01.014
Publikováno v:
Remote Sensing of Environment. 194:322-330
Remote sensing of plant carbon uptake, or gross primary production (GPP), in a repeatable and consistent manner remains a key element of a comprehensive understanding of the role of vegetation within the global carbon cycle. To further this understan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ab3ae249a31fee4daa99089c46f17f3
https://doi.org/10.1016/j.rse.2017.03.025
https://doi.org/10.1016/j.rse.2017.03.025
Autor:
Jian Bi, Yuri Knyazikhin, Sungho Choi, Taejin Park, Jonathan Barichivich, Philippe Ciais, Rong Fu, Sangram Ganguly, Forrest Hall, Thomas Hilker, Alfredo Huete, Matthew Jones, John Kimball, Alexei I Lyapustin, Matti Mõttus, Ramakrishna R Nemani, Shilong Piao, Benjamin Poulter, Scott R Saleska, Sassan S Saatchi, Liang Xu, Liming Zhou, Ranga B Myneni
Publikováno v:
Environmental Research Letters, Vol 10, Iss 6, p 064014 (2015)
Resolving the debate surrounding the nature and controls of seasonal variation in the structure and metabolism of Amazonian rainforests is critical to understanding their response to climate change. In situ studies have observed higher photosynthetic
Externí odkaz:
https://doaj.org/article/4fd23df60ec74e9e85d81524b8b49a97
Publikováno v:
Canadian Journal of Remote Sensing. 42:739-765
Selected modeling methods are compared for predicting 5 forest attributes, basal area (BA), stem volume (VOL), Lorey's height (LOR), quadratic mean diameter (QMD), and tree density (DEN), from airb...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0783527affb3616e790406a28488135
https://doi.org/10.1080/07038992.2016.1252908
https://doi.org/10.1080/07038992.2016.1252908