Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Richard A. Sommerfeld"'
Publikováno v:
Atmospheric Environment. 34:793-801
We conducted a series of bench-top experiments to examine accumulation of acidity in temperate snowpacks due to the deposition of SO2. To achieve this, SO2 at concentrations of 45–85 ppbv was allowed to diffuse into containers of snow at 0°C for v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e023523b8e426aa0d6d880f53b8f0d8c
https://doi.org/10.1016/s1352-2310(99)00286-1
https://doi.org/10.1016/s1352-2310(99)00286-1
Publikováno v:
Hydrological Processes. 13:1807-1826
The flowpaths of meltwater through snow is known to be an inhomogeneous process. The spatial distribution of meltwater flowing from the bottom of melting snowpacks is the result of horizontal and vertical flow paths within the snowpack. The ability t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c31f5ddda412834be202eb0a4ea0769e
https://doi.org/10.1002/(sici)1099-1085(199909)13:12/13<1807::aid-hyp891>3.0.co
https://doi.org/10.1002/(sici)1099-1085(199909)13:12/13<1807::aid-hyp891>3.0.co
Publikováno v:
Geophysical Research Letters. 25:935-938
We designed a series of experiments to verify the value of the diffusion coefficient of HNO 3 in ice at -15° C using a serial sectioning technique. Our first series of experiments with diffusion times of 70 to 100 h gave an average value of about 1.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7921706647679b99240a0437e0a3e6c9
https://doi.org/10.1029/98gl00413
https://doi.org/10.1029/98gl00413
Autor:
Richard A. Sommerfeld, S. G. Rochelle, Karl Zeller, William J. Massman, T. J. Hehn, Arvin R. Mosier
Publikováno v:
Journal of Geophysical Research: Atmospheres. 102:18851-18863
Pressure pumping at the Earth's surface is caused by short-period atmospheric turbulence, longer-period barometric changes, and quasi-static pressure fields induced by wind blowing across irregular topography. These naturally occurring atmospheric pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c67b164c3629fc6415bf20f343de9fc8
https://doi.org/10.1029/97jd00844
https://doi.org/10.1029/97jd00844
Publikováno v:
Global Biogeochemical Cycles. 10:473-482
Three alpine and three subalpine sites were monitored for up to 4 years to acquire data on the temporal and spatial variability of CO2 flux through snowpacks. We conclude that the snow formed a passive cap which controlled the concentration of CO2 at
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::113d929e3d9ba14d6eb00525d9f4065d
https://doi.org/10.1029/96gb01610
https://doi.org/10.1029/96gb01610
Publikováno v:
Environmental Science & Technology. 30:640-646
Nitrogen saturation is occurring throughout high-elevation catchments of the Colorado Front Range. Annual inorganic N loading in wet deposition to the Front Range of ∼4 kg ha-1 yr-1 is about twice that of the Pacific States and similar to many site
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4e5cfff53e81241781c6d7fe916588c
https://doi.org/10.1021/es950383e
https://doi.org/10.1021/es950383e
Publikováno v:
Journal of Hydrology. 173:165-189
Hydrological and chemical fluxes were examined for East and West Glacier Lakes and their adjacent high-elevation (3200—3700 m) catchments in the Snowy Range of southern Wyoming. Both lakes are approximately 3 ha, but the East Glacier catchment (29
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7974423504eb4fd71f8c4704244ead8
https://doi.org/10.1016/0022-1694(95)02701-p
https://doi.org/10.1016/0022-1694(95)02701-p
Publikováno v:
Geophysical Research Letters. 21:2821-2824
The two-dimensional, horizontal spatial statistics of meltwater flow through a Wyoming snowpack were investigated using two independent methods: meltwater flow from arrays of closely spaced lysimeters and a survey of snow surface brightness on aerial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93bfa59a447ec4b6ca5604f7f6fff784
https://doi.org/10.1029/94gl02493
https://doi.org/10.1029/94gl02493
Publikováno v:
Numerical Heat Transfer, Part A: Applications. 25:259-278
A three-dimensional model for heat and mass transport in microscale ice lattices of dry snow is formulated consistent with conservation laws and solid-vapor interface constraints. A finite element model that employs continuous mesh deformation is dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70ae23565da26c8177090982b0113afa
https://doi.org/10.1080/10407789408955948
https://doi.org/10.1080/10407789408955948
Publikováno v:
Global Biogeochemical Cycles. 7:771-784
Soil is considered the major source for both atmospheric nitrous oxide and methane. The studies reported in this paper measure methane and nitrous oxide fluxes during the snow-free time in a subalpine forest meadow. Observations are made on how these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0ae71443a128035993db22d83f94bbd
https://doi.org/10.1029/93gb02561
https://doi.org/10.1029/93gb02561