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Physical Sciences and Mathematics Commons

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Articles 1 - 8 of 8

Full-Text Articles in Physical Sciences and Mathematics

The Formation Of Aufeis And Its Impact On Infrastructure Around Ulaanbaatar, North-Central Mongolia, Michael Walther, Vanchindorj Batsaikhan, Avirmed Dashtseren, Yamkhin Jambaljav, Khurelbaatar Temujin, Ganbold Ulanbayar, Ulrich Kamp Jan 2021

The Formation Of Aufeis And Its Impact On Infrastructure Around Ulaanbaatar, North-Central Mongolia, Michael Walther, Vanchindorj Batsaikhan, Avirmed Dashtseren, Yamkhin Jambaljav, Khurelbaatar Temujin, Ganbold Ulanbayar, Ulrich Kamp

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In this study aufeis features and their formation under natural conditions and in an urban surrounding in north-central Mongolia were investigated. Used methods included field observations, Electrical Resistivity Tomography (ERT) as well as analyses of satellite imagery and meteorological data. Aufeis formation is related to streams, springs, and ground conditions, particularly soil moisture; the formation of both spring aufeis and river aufeis follows a seasonal cycle. The meteorological data from 1969 to 2018 indicate that the mean annual air temperature (MAAT) increased by 2.6 °C, whilst no significant changes were observed for precipitation. Between 1992 and 2018, aufeis areas significantly …


Black Vulture Conflict And Management In The United States: Damage Trends, Management Overview, And Research Needs, Bryan M. Kluever, Morgan Pfeiffer, Scott C. Barras, Brett Dunlap, Lee A. Humberg Jan 2020

Black Vulture Conflict And Management In The United States: Damage Trends, Management Overview, And Research Needs, Bryan M. Kluever, Morgan Pfeiffer, Scott C. Barras, Brett Dunlap, Lee A. Humberg

United States Department of Agriculture Wildlife Services: Staff Publications

Contrary to rapid declines of many vulture (Accipitridae, Cathartidea) species worldwide, black vulture (Coragyps atratus) populations are increasing and expanding their range in North America. Vultures exhibit complex behaviors and can adapt to any human-dominated landscape or land use. These traits, combined with population growth and range expansion, have contributed to increased human–vulture conflicts. Our goal was to summarize the current status and trends in human–black vulture conflicts (hereafter human– vulture conflicts), review available management strategies, identify knowledge gaps, and provide recommendations to enhance management and understanding of this species and the associated conflicts. We found human–vulture conflicts …


Slides: The Colorado River: Innovation In The Face Of Scarcity, Anne J. Castle Jun 2015

Slides: The Colorado River: Innovation In The Face Of Scarcity, Anne J. Castle

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Anne J. Castle, Stanford Woods Institute for the Environment

40 slides


Slides: Moffat Collection System Project, Travis Bray Jun 2015

Slides: Moffat Collection System Project, Travis Bray

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Presenter: Travis Bray, Project Manager, Moffat Collection System Project, Denver Water

45 slides


Slides: Status Of Southern Nevada Water Authority (Snwa): Third Intake Into Lake Mead And Groundwater Project, Kay Brothers Jun 2009

Slides: Status Of Southern Nevada Water Authority (Snwa): Third Intake Into Lake Mead And Groundwater Project, Kay Brothers

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Kay Brothers, Southern Nevada Water Authority (SNWA), Las Vegas, NV

37 slides


Slides: Water Footprints: Consciousness Raising Meets Risk Management, Steve Malloch Jun 2009

Slides: Water Footprints: Consciousness Raising Meets Risk Management, Steve Malloch

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Steve Malloch, Senior Western Water Program Manager, National Wildlife Federation, Seattle, WA

38 slides


Slides: Delta Overview, Leo Winternitz Jun 2009

Slides: Delta Overview, Leo Winternitz

Western Water Law, Policy and Management: Ripples, Currents, and New Channels for Inquiry (Martz Summer Conference, June 3-5)

Presenter: Leo Winternitz, The Nature Conservancy, California Water Program, Sacramento, CA

17 slides


Slides: Climate Comments, Bob Gough Jun 2008

Slides: Climate Comments, Bob Gough

Shifting Baselines and New Meridians: Water, Resources, Landscapes, and the Transformation of the American West (Summer Conference, June 4-6)

Presenter: Bob Gough, NativeEnergy, Inc.

11 slides