Zobrazeno 1 - 10
of 76
pro vyhledávání: '"R. Pirazzini"'
Autor:
J. J. Day, G. Svensson, B. Casati, T. Uttal, S.-J. Khalsa, E. Bazile, E. Akish, N. Azouz, L. Ferrighi, H. Frank, M. Gallagher, Ø. Godøy, L. M. Hartten, L. X. Huang, J. Holt, M. Di Stefano, I. Suomi, Z. Mariani, S. Morris, E. O'Connor, R. Pirazzini, T. Remes, R. Fadeev, A. Solomon, J. Tjernström, M. Tolstykh
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 5511-5543 (2024)
Although the quality of weather forecasts in the polar regions is improving, forecast skill there still lags behind lower latitudes. So far there have been relatively few efforts to evaluate processes in numerical weather prediction systems using in
Externí odkaz:
https://doaj.org/article/1be004685f274756ac71794fd8e261c9
Autor:
T. Uttal, L. M. Hartten, S. J. Khalsa, B. Casati, G. Svensson, J. Day, J. Holt, E. Akish, S. Morris, E. O'Connor, R. Pirazzini, L. X. Huang, R. Crawford, Z. Mariani, Ø. Godøy, J. A. K. Tjernström, G. Prakash, N. Hickmon, M. Maturilli, C. J. Cox
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 5225-5247 (2024)
A large and ever-growing body of geophysical information is measured in campaigns and at specialized observatories as a part of scientific expeditions and experiments. These collections of observed data include many essential climate variables (as de
Externí odkaz:
https://doaj.org/article/b0b6e95974d2487eacffcaf70a19e9f2
Autor:
Z. Mariani, S. M. Morris, T. Uttal, E. Akish, R. Crawford, L. Huang, J. Day, J. Tjernström, Ø. Godøy, L. Ferrighi, L. M. Hartten, J. Holt, C. J. Cox, E. O'Connor, R. Pirazzini, M. Maturilli, G. Prakash, J. Mather, K. Strong, P. Fogal, V. Kustov, G. Svensson, M. Gallagher, B. Vasel
Publikováno v:
Earth System Science Data, Vol 16, Pp 3083-3124 (2024)
The rapid changes occurring in the polar regions require an improved understanding of the processes that are driving these changes. At the same time, increased human activities such as marine navigation, resource exploitation, aviation, commercial fi
Externí odkaz:
https://doaj.org/article/c827a7ccd88a4f35bd429137bb841a17
Autor:
H. K. Lappalainen, T. Petäjä, T. Vihma, J. Räisänen, A. Baklanov, S. Chalov, I. Esau, E. Ezhova, M. Leppäranta, D. Pozdnyakov, J. Pumpanen, M. O. Andreae, M. Arshinov, E. Asmi, J. Bai, I. Bashmachnikov, B. Belan, F. Bianchi, B. Biskaborn, M. Boy, J. Bäck, B. Cheng, N. Chubarova, J. Duplissy, E. Dyukarev, K. Eleftheriadis, M. Forsius, M. Heimann, S. Juhola, V. Konovalov, I. Konovalov, P. Konstantinov, K. Köster, E. Lapshina, A. Lintunen, A. Mahura, R. Makkonen, S. Malkhazova, I. Mammarella, S. Mammola, S. Buenrostro Mazon, O. Meinander, E. Mikhailov, V. Miles, S. Myslenkov, D. Orlov, J.-D. Paris, R. Pirazzini, O. Popovicheva, J. Pulliainen, K. Rautiainen, T. Sachs, V. Shevchenko, A. Skorokhod, A. Stohl, E. Suhonen, E. S. Thomson, M. Tsidilina, V.-P. Tynkkynen, P. Uotila, A. Virkkula, N. Voropay, T. Wolf, S. Yasunaka, J. Zhang, Y. Qiu, A. Ding, H. Guo, V. Bondur, N. Kasimov, S. Zilitinkevich, V.-M. Kerminen, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 4413-4469 (2022)
The Pan-Eurasian Experiment (PEEX) Science Plan, released in 2015, addressed a need for a holistic system understanding and outlined the most urgent research needs for the rapidly changing Arctic-boreal region. Air quality in China, together with the
Externí odkaz:
https://doaj.org/article/63cca6462f0a4cd29251ffda3f1f3530
Autor:
T. Manninen, K. Anttila, E. Jääskeläinen, A. Riihelä, J. Peltoniemi, P. Räisänen, P. Lahtinen, N. Siljamo, L. Thölix, O. Meinander, A. Kontu, H. Suokanerva, R. Pirazzini, J. Suomalainen, T. Hakala, S. Kaasalainen, H. Kaartinen, A. Kukko, O. Hautecoeur, J.-L. Roujean
Publikováno v:
The Cryosphere, Vol 15, Pp 793-820 (2021)
The primary goal of this paper is to present a model of snow surface albedo accounting for small-scale surface roughness effects. The model is based on photon recollision probability, and it can be combined with existing bulk volume albedo models, su
Externí odkaz:
https://doaj.org/article/773767398c2a4896a43eed6edbaa3dac
Publikováno v:
The Cryosphere, Vol 14, Pp 1497-1517 (2020)
Surface albedo is an essential variable to determine the Earth's surface energy budget, in particular for snow-covered areas where it is involved in one of the most powerful positive feedback loops of the climate system. In situ measurements of broad
Externí odkaz:
https://doaj.org/article/62df1a334757442aad19e6234fbd4ce5
Autor:
T. Vihma, P. Uotila, S. Sandven, D. Pozdnyakov, A. Makshtas, A. Pelyasov, R. Pirazzini, F. Danielsen, S. Chalov, H. K. Lappalainen, V. Ivanov, I. Frolov, A. Albin, B. Cheng, S. Dobrolyubov, V. Arkhipkin, S. Myslenkov, T. Petäjä, M. Kulmala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 1941-1970 (2019)
The Arctic marine climate system is changing rapidly, which is seen in the warming of the ocean and atmosphere, decline of sea ice cover, increase in river discharge, acidification of the ocean, and changes in marine ecosystems. Socio-economic activi
Externí odkaz:
https://doaj.org/article/e9b12e6b2d044d26bda910123e9bf40a
Publikováno v:
The Cryosphere, Vol 9, Iss 6, Pp 2357-2381 (2015)
The albedo of a snowpack depends on the single-scattering properties of individual snow crystals, which have a variety of shapes and sizes, and are often bounded in clusters. From the point of view of optical modelling, it is essential to identify th
Externí odkaz:
https://doaj.org/article/23fb1c14b43c4c6bac60c54a12b4cc67
Autor:
T. Vihma, R. Pirazzini, I. Fer, I. A. Renfrew, J. Sedlar, M. Tjernström, C. Lüpkes, T. Nygård, D. Notz, J. Weiss, D. Marsan, B. Cheng, G. Birnbaum, S. Gerland, D. Chechin, J. C. Gascard
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 17, Pp 9403-9450 (2014)
The Arctic climate system includes numerous highly interactive small-scale physical processes in the atmosphere, sea ice, and ocean. During and since the International Polar Year 2007–2009, significant advances have been made in understanding these
Externí odkaz:
https://doaj.org/article/0685dba2ffeb40a2b3029b2fbf45ba18
Publikováno v:
The Cryosphere, Vol 5, Iss 1, Pp 187-201 (2011)
To quantify the spatial and temporal variability in the snow pack, field measurements were carried out during four summers in Dronning Maud Land, Antarctica. Data from a 310-km-long transect revealed the largest horizontal gradients in snow density,
Externí odkaz:
https://doaj.org/article/c26171c20477444b8469cf8149165be0