Zobrazeno 1 - 10
of 86
pro vyhledávání: '"J. P. Christensen"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 10849-10867 (2024)
China has long-term high PM2.5 levels, and its oxidative potential (OP) is worth studying as it may unravel the impacts of aerosol pollution on public health better than PM2.5 alone. OP refers to the ability of PM2.5 to induce oxidative stress (OS).
Externí odkaz:
https://doaj.org/article/910f8c818ee743dfaae65ee3104b0995
Publikováno v:
Biogeosciences, Vol 12, Iss 9, Pp 2641-2654 (2015)
Oceanic depth profiles of plankton respiration are described by a power function, RCO2 = (RCO2)0 (z/z0)b, similar to the vertical carbon flux profile. Furthermore, because both ocean processes are closely related, conceptually and mathematically, eac
Externí odkaz:
https://doaj.org/article/98d5d5ebdacb4e1f835b6b26ae0b5df4
Autor:
L. A. Codispoti, Jay A. Brandes, J. P. Christensen, A. H. Devol, S.W. A. Naqvi, Hans W. Paerl, T. Yoshinari
Publikováno v:
Scientia Marina, Vol 65, Iss S2, Pp 85-105 (2001)
New data force us to raise previous estimates of oceanic denitrification. Our revised estimate of ~ 450 Tg N yr-1 (Tg = 1012 g) produces an oceanic fixed N budget with a large deficit (~ 200 Tg N yr-1) that can be explained only by positing an ocean
Externí odkaz:
https://doaj.org/article/d2971ab5a7dd465cb0f4b70e9ee592f4
Autor:
E. Médus, E. D. Thomassen, D. Belušić, P. Lind, P. Berg, J. H. Christensen, O. B. Christensen, A. Dobler, E. Kjellström, J. Olsson, W. Yang
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 22, Pp 693-711 (2022)
It is well established that using kilometer scale grid resolution for simulations of weather systems in weather and climate models enhances their realism. This study explores heavy- and extreme-precipitation characteristics over the Nordic region gen
Externí odkaz:
https://doaj.org/article/c2ecb1d478d8417499cb8c6f30a5c7db
Autor:
H. Skov, J. Hjorth, C. Nordstrøm, B. Jensen, C. Christoffersen, M. Bech Poulsen, J. Baldtzer Liisberg, D. Beddows, M. Dall'Osto, J. H. Christensen
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 13253-13265 (2020)
Mercury is ubiquitous in the atmosphere, and atmospheric transport is an important source for this element in the Arctic. Measurements of gaseous elemental mercury (GEM) have been carried out at Villum Research Station (Villum) at Station Nord, situa
Externí odkaz:
https://doaj.org/article/1313c91db1114a1cb1abf32e90b20889
Autor:
J. Kukkonen, S. López-Aparicio, D. Segersson, C. Geels, L. Kangas, M. Kauhaniemi, A. Maragkidou, A. Jensen, T. Assmuth, A. Karppinen, M. Sofiev, H. Hellén, K. Riikonen, J. Nikmo, A. Kousa, J. V. Niemi, N. Karvosenoja, G. S. Santos, I. Sundvor, U. Im, J. H. Christensen, O.-K. Nielsen, M. S. Plejdrup, J. K. Nøjgaard, G. Omstedt, C. Andersson, B. Forsberg, J. Brandt
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 4333-4365 (2020)
Residential wood combustion (RWC) is an important contributor to air quality in numerous regions worldwide. This study is the first extensive evaluation of the influence of RWC on ambient air quality in several Nordic cities. We have analysed the emi
Externí odkaz:
https://doaj.org/article/e7430309401b4482b6d29c0cd9883fc8
Publikováno v:
Hydrology and Earth System Sciences, Vol 23, Pp 4269-4292 (2019)
The Upper Missouri River headwaters (UMH) basin (36 400 km2) depends on its river corridors to support irrigated agriculture and world-class trout fisheries. We evaluated trends (1984–2016) in riparian wetness, an indicator of the riparian cond
Externí odkaz:
https://doaj.org/article/c7e077e4acb54dcdbbd918cbf2b5215d
Autor:
A. S. Lansø, T. L. Smallman, J. H. Christensen, M. Williams, K. Pilegaard, L.-L. Sørensen, C. Geels
Publikováno v:
Biogeosciences, Vol 16, Pp 1505-1524 (2019)
Although coastal regions only amount to 7 % of the global oceans, their contribution to the global oceanic air–sea CO2 exchange is proportionally larger, with fluxes in some estuaries being similar in magnitude to terrestrial surface fluxes of CO
Externí odkaz:
https://doaj.org/article/e92c42b6228a451b8ffbb6a4e14cc3fb
Autor:
P. Liu, C. Hogrefe, U. Im, J. H. Christensen, J. Bieser, U. Nopmongcol, G. Yarwood, R. Mathur, S. Roselle, T. Spero
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 17157-17175 (2018)
Increasing emphasis has been placed on characterizing the contributions and the uncertainties of ozone imported from outside the US. In chemical transport models (CTMs), the ozone transported through lateral boundaries (referred to as LB ozone hereaf
Externí odkaz:
https://doaj.org/article/df418a58d2dd47c3b47c366cc9af33bb
Autor:
M. G. Vivanco, M. R. Theobald, H. García-Gómez, J. L. Garrido, M. Prank, W. Aas, M. Adani, U. Alyuz, C. Andersson, R. Bellasio, B. Bessagnet, R. Bianconi, J. Bieser, J. Brandt, G. Briganti, A. Cappelletti, G. Curci, J. H. Christensen, A. Colette, F. Couvidat, C. Cuvelier, M. D'Isidoro, J. Flemming, A. Fraser, C. Geels, K. M. Hansen, C. Hogrefe, U. Im, O. Jorba, N. Kitwiroon, A. Manders, M. Mircea, N. Otero, M.-T. Pay, L. Pozzoli, E. Solazzo, S. Tsyro, A. Unal, P. Wind, S. Galmarini
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 10199-10218 (2018)
The evaluation and intercomparison of air quality models is key to reducing model errors and uncertainty. The projects AQMEII3 and EURODELTA-Trends, in the framework of the Task Force on Hemispheric Transport of Air Pollutants and the Task Force o
Externí odkaz:
https://doaj.org/article/8f1807560bc14ff9ab5a4172f76077f8