Zobrazeno 1 - 10
of 166
pro vyhledávání: '"William C. Malm"'
Autor:
Kristi A. Gebhart, William C. Malm, Marco A. Rodriguez, Michael G. Barna, Bret A. Schichtel, Katherine B. Benedict, Jeffrey L. Collett, Christian M. Carrico
Publikováno v:
Advances in Meteorology, Vol 2014 (2014)
The Rocky Mountain Atmospheric Nitrogen and Sulfur (RoMANS II) study with field operations during November 2008 through November 2009 was designed to evaluate the composition and sources of reactive nitrogen in Rocky Mountain National Park, Colorado,
Externí odkaz:
https://doaj.org/article/b36710e48e4146368b36ac60170de176
Autor:
James R. Ouimette, William C. Malm, Bret A. Schichtel, Patrick J. Sheridan, Elisabeth Andrews, John A. Ogren, W. Patrick Arnott
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57e8bfd7c530da57033aaad7b0b84fd2
https://doi.org/10.5194/amt-2021-170-supplement
https://doi.org/10.5194/amt-2021-170-supplement
Publikováno v:
Atmospheric Environment. 203:141-152
The Interagency Monitoring of Protected Visual Environments (IMPROVE) network collects aerosol samples for gravimetric and composition analysis in support of the Environmental Protection Agency's Regional Haze Rule and for long-term trend studies and
Publikováno v:
Journal of the Air & Waste Management Association. 69:145-161
Several studies have been carried out over the past 20 or so years to assess the level of visual air quality that is judged to be acceptable in urban settings. Groups of individuals were shown slides or computer-projected scenes under a variety of ha
Publikováno v:
Journal of Geophysical Research: Atmospheres. 125
Autor:
Jill A. McMurray, Michael D. Bell, Tammy M. Thompson, J. L. Hand, Bret A. Schichtel, William C. Malm, Rui Zhang, Michael G. Barna
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 12991-13011 (2018)
Research has shown that excess reactive nitrogen (Nr) deposition in the Greater Yellowstone Area (GYA) of the United States has passed critical load thresholds and is adversely affecting sensitive ecosystems in this area. To better understand the sou
Publikováno v:
Atmospheric Environment. 175:167-183
Webcams and automated, color photography cameras have been routinely operated in many U.S. national parks and other federal lands as far back as 1988, with a general goal of meeting interpretive needs within the public lands system and communicating
Autor:
Jenny L. Hand, Robert J. Farber, Mark C. Green, William C. Malm, Kristi A. Gebhart, Bret A. Schichtel, John Vimont, Delbert J. Eatough
Publikováno v:
Atmospheric Environment. 253:118339
Visibility impairment, particularly at the iconic southwestern U.S. national parks, was an early and persistent concern that helped motivate parts of the Clean Air Act (CAA) and its 1977 and 1990 amendments. Grand Canyon National Park (GCNP), Arizona
Autor:
Michael G. Barna, S. Copeland, John Vimont, William C. Malm, Bret A. Schichtel, Kristi A. Gebhart, Jenny L. Hand
Publikováno v:
Environmental Science & Technology. 51:9846-9855
Carbonaceous compounds are a significant component of fine particulate matter and haze in national parks and wilderness areas where visibility is protected, i.e., class I areas (CIAs). The Regional Haze Rule set the goal of returning visibility in CI
Publikováno v:
Managing Air Quality and Scenic Resources at National Parks and Wilderness Areas ISBN: 9780429050084
Managing Air Quality and Scenic Resources at National Parks and Wilderness Areas
Managing Air Quality and Scenic Resources at National Parks and Wilderness Areas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f3c69f52e79ccb3f44d4354e7ed5ea0
https://doi.org/10.4324/9780429050084-18
https://doi.org/10.4324/9780429050084-18