Results 51 to 60 of about 2,468 (220)

Biological intercalibration: Invertebrates 2017 [PDF]

, 2017
The 21th intercalibration of invertebrates in the ICP Waters programme had contribution from four laboratories. The biological intercalibration is important for harmonizing taxonomic work across countries and will be of high value for programmes where ...
Johannessen, Arne, Landås, Torunn Svanevik, Halvorsen, Godtfred Anker   +2 more
core  

Aligning Pixel Values of DMSP and VIIRS Nighttime Light Images to Evaluate Urban Dynamics

Remote Sensing, 2019
The brightness of pixels in nighttime light images (NTL) has been regarded as the proxy of the urban dynamics. However, the great difference between the pixel values of NTL from the Defense Meteorological Satellite Program’s Operational Linescan ...
Kang Wu, Xiaonan Wang
doaj   +1 more source

Intercalibration of selected anthropogenic radionuclides for the GEOTRACES Program [PDF]

Limnology and Oceanography: Methods, 2012
As part of the GEOTRACES Program, six laboratories participated in an intercalibration exercise on several anthropogenic radionuclides of interest. The effort was successful for 239,240Pu activity, 240Pu/239Pu isotope ratio, and 137Cs activity measured in filtered seawater samples from the Bermuda Atlantic Time Series station (BATS) and a site on the ...
Kenna, Timothy C., Masqué, Pere, Más Balbuena, José Luis, Cámara-Mor, Patricia, Chamizo Calvo, Elena, Scholten, Jan, Eriksson, Mats, Sánchez-Cabeza, Joan-Albert, Gastaud, Janine, Levy, Isabelle, Herrmann, Jürgen, Lindahl, Patric, Hong, Gi-Hoon, Nielsen, Sven   +13 more
openaire   +4 more sources

The Nature Restoration Regulation and the Water Framework Directive: enhancing restoration of freshwater ecosystems, or muddying the waters?

Restoration Ecology, Volume 34, Issue S1, May 2026.
The Water Framework Directive 2000/60/EC (WFD) and the Nature Restoration Regulation (EU) 2024/1991 (NRR) both require Member States to restore freshwater ecosystems. This study analyzes how these two instruments interact, identifying both synergies and conflicts.
Eleonora Ciscato, Morgan E. Harris
wiley   +1 more source

First intercalibration of column-averaged methane from the Total Carbon Column Observing Network and the Network for the Detection of Atmospheric Composition Change [PDF]

Atmospheric Measurement Techniques, 2013
We present the first intercalibration of dry-air column-averaged mole fractions of methane (XCH₄) retrieved from solar Fourier transform infrared (FTIR) measurements of the Network for the Detection of Atmospheric Composition ...
R. Sussmann, A. Ostler, F. Forster, M. Rettinger, N. M. Deutscher, D. W. T. Griffith, J. W. Hannigan, N. Jones, P. K. Patra   +8 more
doaj   +1 more source

Exploring the Implications of the Russo‐Ukrainian War on Natural Gas Usage and Consequent Impacts on Air Quality in Northern Italy

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract This study examines how the Russo‐Ukrainian war affected natural gas consumption and air quality in northern Italy. The conflict disrupted European natural gas supplies, leading to a reduction in residential natural gas use. We investigated how this reduction affected air quality, focusing on residential wood combustion (RWC) as an alternative
Manuel Bettineschi, Giancarlo Ciarelli, Tuukka Petäjä, Markku Kulmala, Arineh Cholakian, Alessandro Bigi, Federico Bianchi   +6 more
wiley   +1 more source

Intercalibration of the national classifications of ecological status for Eastern Continental lakes: Biological Quality Element: Phytoplankton [PDF]

, 2018
The European Water Framework Directive (WFD) requires the national classifications of good ecological status to be harmonised through an intercalibration exercise. In this exercise, significant differences in status classification among Member States are
BORICS Gabor, CHIRIAC Gabriel, BELKINOVA Detelina, POIKANE Sandra, DONABAUM Karl, WOLFRAM Georg   +5 more
core   +1 more source

Calculating a minimum overlap period for successful intercalibration of soil moisture sensors

Vadose Zone Journal
Long‐term in situ soil moisture monitoring inevitably requires sensors to be replaced. Ensuing discontinuities in the data record can be mitigated by intercalibration, however it is unclear how long the existing sensor needs to remain alongside the newly
Victoria A. Walker, Michael H. Cosh, Tyson E. Ochsner   +2 more
doaj   +1 more source

Comparison and Intercalibration of Vegetation Indices from Different Sensors for Monitoring Above-Ground Plant Nitrogen Uptake in Winter Wheat

Sensors, 2013
Various sensors have been used to obtain the canopy spectral reflectance for monitoring above-ground plant nitrogen (N) uptake in winter wheat. Comparison and intercalibration of spectral reflectance and vegetation indices derived from different sensors ...
Yan Zhu, Weixing Cao, Jun Ni, Xinfeng Yao, Xia Yao, Wenqing Jia, Yongchao Tian   +6 more
doaj   +1 more source

Does vertical wind shear increase tropical cyclone rain?

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 777, April 2026 Part B.
A 26‐year modern precipitation dataset is used to systematically assess tropical cyclone (TC) rainfall responses to vertical wind shear (VWS). VWS enhances rainfall volume in TCs by up to 23%, despite reducing storm intensity, revealing a trade‐off where VWS mitigates wind damage but potentially amplifies flood risk.
King Heng Lau, Ralf Toumi
wiley   +1 more source