Results 71 to 80 of about 44,465 (272)

Intercomparison of carbon‐13 and carbon‐14 tracer approaches for estimating marine calcification and net primary production

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Accurate measurements of phytoplankton net primary production (NPP) and calcification are essential for quantifying marine carbon cycling, yet in situ calcification rates remain poorly constrained. We compared 13C‐ and 14C‐based tracer methods for NPP in laboratory cultures of the diatom Chaetoceros tenuissimus and the coccolithophore ...
Chloe L. Smith   +4 more
wiley   +1 more source

DataSheet 2 - Soil algal NPP

open access: yes, 2022
This data set contains the primary productivity data used in the paper to investigate soil algal NPP ...
Paul Kardol (140646)   +7 more
core   +1 more source

A note on meteorological variables related trends in the MODIS NPP product for Estonia / Meteoroloogilised andmed põhjustavad vigu MODISe primaarproduktsiooni hinnangutes Eesti alal

open access: yesMetsanduslikud Uurimused, 2011
The MODIS (The Moderate Resolution Imaging Spectroradiometer) yearly NPP (Net Primary Production) 1 km resolution products were collected over Estonia for years 2000-2010.
Eenmäe Alo, Nilson Tiit, Lang Mait
doaj   +1 more source

Problems of calculation of heat transfer crisis in fuel assembles of water cooled reactors [PDF]

open access: yesЯдерна фізика та енергетика, 2018
Current problem of the ensuring reliability of the results of mathematical computer simulation of the operational modes of water-cooled nuclear reactors is considered in this article.
G. I. Sharaevsky   +3 more
doaj   +1 more source

Informing the potential of mature temperate forests as natural climate solutions: Changed fine root biomass and morphology under elevated CO2

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The land carbon sink absorbs approximately 25% of anthropogenic CO2 emissions, with forests accounting for most. Managing forests as Natural Climate Solutions is therefore a societal imperative, requiring models of where and how long carbon resides within these ecosystems. We investigated the effects of elevated CO2 on fine roots, the primary source of
Grace Handy   +13 more
wiley   +1 more source

Using of the Serpent code based on the Monte-Carlo method for calculation of the VVER-1000 fuel assembly characteristics

open access: yesЯдерна фізика та енергетика, 2016
The description of calculation scheme of fuel assembly for preparation of few-group characteristics is considered with help of Serpent code. This code uses the Monte-Carlo method and energy continuous microscopic data libraries.
V. V. Galchenko   +2 more
doaj  

Coupled observation‐operator approximations in outer‐loop coupling data assimilation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
We present a methodology for coupled variational data assimilation that allows the effect of coupled observation operators whilst maintaining separate minimisations across model components. This allows us to constrain the atmosphere, ocean, and sea‐ice components of our coupled model directly from satellite radiances. We illustrate the system in action
P. A. Browne   +5 more
wiley   +1 more source

Comparing global models of terrestrial net primary productivity (NPP): Comparison of annual net primary productivity and climatic drivers

open access: yes, 1999
To analyse the broad-scale behaviour of 15 global models of the terrestrial biosphere, we evaluated the sensitivity of simulated net primary productivity (NPP) to spatial and seasonal variations in precipitation, temperature and solar radiation, and to ...
Kicklighter, David W.   +8 more
core   +1 more source

Soviet Chernobyl vs American Three Mile Island: Information Space as a Factor in Social Crisis

open access: yesКиївські історичні студії
The article is devoted to the study of the features of communication and information policy during the periods of the two most famous nuclear accidents of the 20th century: at the Three Mile Island NPP in the USA (1979) and at the Chernobyl NPP in the ...
Svyatoslav Yusov
doaj   +1 more source

Satellite radiance observation error inflation and spatial thinning: Reconciling idealized theory with near‐operational applications

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Satellite radiance observations are spatially thinned using a grid‐based selection that retains one representative profile per cell. When observation errors are spatially correlated but treated as uncorrelated in the assimilation system, reducing thinning increases their influence, leading to overfitting and reduced analysis fit with other observations.
Joel Bedard   +3 more
wiley   +1 more source

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