Results 61 to 70 of about 3,196 (214)

Intercalibration of the national classifications of ecological status for Northern Lakes: Biological Quality Element: Fish fauna [PDF]

open access: yes, 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
HESTHAGEN T.   +7 more
core   +1 more source

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

open access: yesLimnology 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.   +13 more
openaire   +3 more sources

Flow cytometric phytoplankton concentration and optical properties across instruments and laboratories

open access: yesLimnology and Oceanography: Methods, Volume 24, Issue 11, November 2026.
Abstract Flow cytometry measures the optical properties of individual cells and has become essential for enumerating and characterizing marine phytoplankton. Yet systematic comparison of measurements across instruments remains limited, hampering data comparison across laboratories and long‐term time series.
Francois Ribalet   +10 more
wiley   +1 more source

Transitional waters Mediterranean Geographic Intercalibration Group: Benthic invertebrates fauna ecological assessment methods

open access: yes, 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
GASCON S   +13 more
core   +1 more source

Water Framework Directive Intercalibration Technical Report: Central Baltic Lake Macrophyte ecological assessment methods

open access: yes, 2014
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
Willby, N.   +37 more
core   +2 more sources

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

open access: yesRemote 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

A Late Cretaceous‐Eocene Geomagnetic Polarity Time Scale (MM26) That Combines Marine Magnetic Anomaly Records, Radioisotopic Dates, and Astrochronology

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 10, October 2026.
Abstract The Geomagnetic Polarity Time Scale (GPTS) is essential to date geological events in stratigraphic sequences and to reconstruct plate motions. The first GPTSs were based on the record of magnetic anomalies created by seafloor spreading, calibrated by a few radioisotopic dates.
A. Malinverno, S. R. Meyers
wiley   +1 more source

Coastal waters Black Sea geographic intercalibration group: Macroalgae and angiosperms ecological assessment methods

open access: yes, 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
MARIN Oana   +3 more
core   +1 more source

Water Framework Directive Intercalibration Technical Report: Mediterranean Lake Phytoplankton ecological assessment methods

open access: yes, 2014
One of the key actions identified by the Water Framework Directive (WFD; 2000/60/EC) is to develop ecological assessment tools and carry out a European intercalibration (IC) exercise.
DE HOYOS Caridad   +13 more
core   +3 more sources

Seasonal and Spatial Variability of Silicon Cycle in Godavari Tidal River Zone

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 10, October 2026.
Abstract Dam regulation of tropical monsoonal rivers enhances seasonal contrasts in the tidal river zone (TRZ) hydrology, altering the delivery of dissolved silicon (DSi) to the coastal ocean. Here, we identify the drivers of Si cycling in the Godavari TRZ and quantify their implications for Si delivery to the Bay of Bengal (BoB). We analyzed elemental
Sarath Pullyottum Kavil   +6 more
wiley   +1 more source

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