Correcting land surface temperature from thermal imager by considering heterogeneous emissivity

Autor: Wenjie Yan, Jiawei Jiang, Lanwu He, Wenli Zhao, Richard Nair, Xu Wang, Yujiu Xiong

Publikováno v: International Journal of Applied Earth Observations and Geoinformation, Vol 129, Iss , Pp 103824- (2024)

It is fundamental to obtain accurate land surface temperature (LST) to study surface energy process. Infrared thermal imagers are commonly used for deriving LST on the basis of radiance measurements. However, when deriving LST from brightness tempera

Externí odkaz: https://doaj.org/article/5bb819c2440f4eb98ff54e4dba727e22

Leaf-level coordination principles propagate to the ecosystem scale

Autor: Ulisse Gomarasca, Mirco Migliavacca, Jens Kattge, Jacob A. Nelson, Ülo Niinemets, Christian Wirth, Alessandro Cescatti, Michael Bahn, Richard Nair, Alicia T. R. Acosta, M. Altaf Arain, Mirela Beloiu, T. Andrew Black, Hans Henrik Bruun, Solveig Franziska Bucher, Nina Buchmann, Chaeho Byun, Arnaud Carrara, Adriano Conte, Ana C. da Silva, Gregory Duveiller, Silvano Fares, Andreas Ibrom, Alexander Knohl, Benjamin Komac, Jean-Marc Limousin, Christopher H. Lusk, Miguel D. Mahecha, David Martini, Vanessa Minden, Leonardo Montagnani, Akira S. Mori, Yusuke Onoda, Josep Peñuelas, Oscar Perez-Priego, Peter Poschlod, Thomas L. Powell, Peter B. Reich, Ladislav Šigut, Peter M. van Bodegom, Sophia Walther, Georg Wohlfahrt, Ian J. Wright, Markus Reichstein

Publikováno v: Nature Communications, Vol 14, Iss 1, Pp 1-11 (2023)

Abstract Fundamental axes of variation in plant traits result from trade-offs between costs and benefits of resource-use strategies at the leaf scale. However, it is unclear whether similar trade-offs propagate to the ecosystem level. Here, we test w

Externí odkaz: https://doaj.org/article/e34eec95839f4cc1bc7fcc5dad3031d2

Day-night root dynamics change through the growing season

Autor: Richard Nair, Martin Strube, Marion Schrumpf, Mirco Migliavacca

Roots are difficult to measure at high temporal resolution but are important as belowground sinks and sources of CO2. Even in an age of automated and remote estimation of many ecosystem properties, belowground plant biomass is opaque at all but the c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec91356f2db9565541da16cc21a562fc
https://doi.org/10.5194/egusphere-egu23-6348

Forest canopy nitrogen uptake can supply entire foliar demand

Autor: Daniele Ferraretto, Richard Nair, Nadeem W. Shah, Dave Reay, Maurizio Mencuccini, Michael Spencer, Kate V. Heal

Publikováno v: Ferraretto, D, Nair, R, Shah, N W, Reay, D, Mencuccini, M, Spencer, M & Heal, K 2022, ' Forest canopy nitrogen uptake can supply entire foliar demand ', Functional Ecology, vol. 36, no. 4, pp. 933-949 . https://doi.org/10.1111/1365-2435.14005
Functional Ecology

Plant canopies intercept, process, and potentially assimilate atmospheric nitrogen (N) additions, but the forest-scale effects of canopy processes on N cycling and plant nutrition are not clear. Substantial method artefacts and scaling issues exist i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::babb29f3ec892961a7952c27c8120abe
https://doi.org/10.1111/1365-2435.14005

Short-term asynchrony of root and shoot growth links to soil carbon flux dynamics

Autor: Richard Nair, Martin Strube, Marion Schrumpf, Tarek El-Madany, Mirco Migliavacca

Root dynamics and allocation belowground are a major uncertainty in ecosystem studies because roots are hard to measure in comparison to leaves, which can be assessed at fine timescales using a variety of remote sensing approaches. We built an automa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2820b2d5b8d1220e3ccfca18cc123d43
https://doi.org/10.5194/egusphere-egu22-5349