Zobrazeno 1 - 10
of 19
pro vyhledávání: '"J. Ian MacPherson"'
Publikováno v:
California Agriculture, Vol 48, Iss 4, Pp 9-12 (1994)
The California Ozone Deposition Experiment, using Instruments mounted In an airplane and on the ground, shows that agricultural land in the San Joaquin Vailey removes large amounts of ozone from valley air. The most active pathway Is uptake through
Externí odkaz:
https://doaj.org/article/877d2aafe9d849b793bfe87c1bbc7916
Publikováno v:
Advances in Science and Research, Vol 13, Pp 43-49 (2016)
Over the past 30 years, the Canadian Twin Otter research group has operated an aircraft platform for the study of atmospheric greenhouse gas fluxes (carbon dioxide, ozone, nitrous oxide and methane) and energy exchange (latent and sensible heat) over
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfd848e16087fc8908b4f2978969f67e
https://www.adv-sci-res.net/13/43/2016/
https://www.adv-sci-res.net/13/43/2016/
Publikováno v:
Journal of Hydrometeorology. 6:825-839
Eddy covariance measurements of wind speed u and shear velocity u* from tower- and aircraft-based systems collected over rapidly developing corn- (Zea mays L.) and soybean [Glycine max (L.) Merr.] fields were used in determining the local and regiona
Publikováno v:
Agricultural and Forest Meteorology. 115:91-107
Recent CO 2 flux measurements from towers and aircraft (net ecosystem exchange by eddy covariance) and remote sensing/modeling (net primary productivity—NPP) following fire show that the regenerating boreal forest in western Canada has a low initia
Publikováno v:
Journal of Hydrometeorology. 2:254-273
The 1997 Southern Great Plains Hydrology Experiment (SGP97) was designed and conducted to extend surface soil moisture retrieval algorithms based on passive microwave observations to coarser resolutions, larger regions with more diverse conditions, a
Publikováno v:
Journal of Applied Meteorology. 38:1499-1518
In this study, the ability of a turbulent kinetic energy (TKE)‐based boundary layer scheme to reproduce the rapid evolution of the planetary boundary layer (PBL) observed during two clear convective days is examined together with the impact of incl
Autor:
J. Ian MacPherson, Alan K. Betts
Publikováno v:
Journal of Geophysical Research: Atmospheres. 102:29231-29234
A number of intense low-level vortices were encountered at a height of 30 m over the boreal forest by a Twin Otter atmospheric research aircraft. They imposed strong vertical and lateral accelerations on this aircraft: the most energetic had an updra
Autor:
J. Ian MacPherson, Forrest G. Hall, Piers J. Sellers, Raymond L. Desjardins, Shashi B. Verma, Mark D. Heiser, Peter M. Schuepp
Publikováno v:
Journal of Hydrology. 190:269-301
It is commonly assumed that biophysically based soil-vegetation-atmosphere transfer (SVAT) models are scale-invariant with respect to the initial boundary conditions of topography, vegetation condition and soil moisture. In practice, SVAT models that
Autor:
Stephen R. Springston, J. Ian MacPherson, George A. Isaac, Lawrence I. Kleinman, Catharine M. Banic, W. Richard Leaitch, M. D. Couture
Publikováno v:
Journal of Geophysical Research: Atmospheres. 101:29091-29104
The horizontal transport of 0" S02, and non-sea-salt particulate S04 over the ocean near Nova Scotia, Canada, is determined from in situ measurements made during the 1993 North Atlantic Regional Experiment (NARE) summer intensive. The average mass of
Autor:
J. Ian MacPherson, George A. Isaac, Stephen R. Springston, Catharine M. Banic, Yin-Nan Lee, Peter H. Daum, Lawrence I. Kleinman, Leonard Newman, W. Richard Leaitch
Publikováno v:
Journal of Geophysical Research: Atmospheres. 101:29043-29060
As part of the North Atlantic Regional Experiment, the National Research Council of Canada Twin Otter aircraft was used to measure the concentration of O3 and related compounds in the atmosphere over southern Nova Scotia. Forty-eight flights were con