Zobrazeno 1 - 10
of 61
pro vyhledávání: '"J A, Welker"'
Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals
Autor:
G. Pereira Freitas, B. Kopec, K. Adachi, R. Krejci, D. Heslin-Rees, K. E. Yttri, A. Hubbard, J. M. Welker, P. Zieger
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 5479-5494 (2024)
Mixed-phase clouds (MPCs) are key players in the Arctic climate system due to their role in modulating solar and terrestrial radiation. Such radiative interactions rely, among other factors, on the ice content of MPCs, which is regulated by the avail
Externí odkaz:
https://doaj.org/article/abea4fb036704a90ab5ade06560cfbc2
Publikováno v:
AGU Advances, Vol 4, Iss 4, Pp n/a-n/a (2023)
Abstract Snow is critically important to the energy budget, biogeochemistry, ecology, and people of the Arctic. While climate change continues to shorten the duration of the snow cover period, snow mass (the depth of the snow pack) has been increasin
Externí odkaz:
https://doaj.org/article/e8a177a7145d42a19228473e7162fb88
Publikováno v:
PLoS ONE, Vol 18, Iss 4, p e0285030 (2023)
The Normalized Difference Vegetation Index (NDVI), derived from reflected visible and infrared radiation, has been critical to understanding change across the Arctic, but relatively few ground truthing efforts have directly linked NDVI to structural
Externí odkaz:
https://doaj.org/article/8ac9353a9d37461c8e81887ed39a2498
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 13929-13955 (2020)
At Thule Air Base on the coast of Baffin Bay (76.51∘ N, 68.74∘ W), we continuously measured water vapor isotopes (δ18O, δ2H) at a high frequency (1 s−1) from August 2017 through August 2019. Our resulting record, including derived deute
Externí odkaz:
https://doaj.org/article/dc3e1be33fef4f7cadf0697f8aa28385
Publikováno v:
Ecosphere, Vol 12, Iss 7, Pp n/a-n/a (2021)
Abstract Caribou (Rangifer tarandus) rely on the short Arctic growing season to restore body condition, support the demands of lactation, and prepare for the long arctic winter, making them susceptible to even small changes in forage availability or
Externí odkaz:
https://doaj.org/article/be2995aec1b04cb189f25aeeeab6d67c
Publikováno v:
Hydrology and Earth System Sciences, Vol 23, Pp 3423-3436 (2019)
Quantifying seasonal variations in precipitation δ2H and δ18O is important for many stable isotope applications, including inferring plant water sources and streamflow ages. Our objective is to develop a data product that concisely quantifies the s
Externí odkaz:
https://doaj.org/article/87a88cdc786b44119d4b6c1661ce3d57
Publikováno v:
Paleoceanography and Paleoclimatology. 38
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::687ba8add25fbe78258d0bccc568616e
https://doi.org/10.1029/2022pa004458
https://doi.org/10.1029/2022pa004458
Publikováno v:
SOIL, Vol 2, Iss 3, Pp 459-474 (2016)
Soil microbial communities play a central role in the cycling of carbon (C) in Arctic tundra ecosystems, which contain a large portion of the global C pool. Climate change predictions for Arctic regions include increased temperature and precipitation
Externí odkaz:
https://doaj.org/article/975989405bb64a81bc8320c6669eeb32
Autor:
S. Jasechko, A. Lechler, F. S. R. Pausata, P. J. Fawcett, T. Gleeson, D. I. Cendón, J. Galewsky, A. N. LeGrande, C. Risi, Z. D. Sharp, J. M. Welker, M. Werner, K. Yoshimura
Publikováno v:
Climate of the Past, Vol 11, Iss 10, Pp 1375-1393 (2015)
Reconstructions of Quaternary climate are often based on the isotopic content of paleo-precipitation preserved in proxy records. While many paleo-precipitation isotope records are available, few studies have synthesized these dispersed records to exp
Externí odkaz:
https://doaj.org/article/071425b6a18643bda5c1aded8bb2bec5
Publikováno v:
Atmospheric Measurement Techniques, Vol 7, Iss 9, Pp 3127-3138 (2014)
The EOS (Earth Observing System) Aura Tropospheric Emission Spectrometer (TES) retrieves the atmospheric HDO / H2O ratio in the mid-to-lower troposphere as well as the planetary boundary layer. TES observations of water vapor and the HDO isotopologue
Externí odkaz:
https://doaj.org/article/d41f56ac23fc46958a4ef51900a62542