Digital Commons Network^™

Drought Monitoring: Historical And Current Perspectives, Michael J. Hayes, Mark D. Svoboda, Brian D. Wardlow, Martha C. Anderson, Felix Kogan

National Drought Mitigation Center: Faculty Publications

Drought is a normal, recurring feature of climate throughout the world, with characteristics and impacts that can vary from region to region. Figure 1.1 illustrates the regular occurrence of drought within the United States between 1895 and 2010 with approximately 14% of the country, on average (plotted by black dotted line), experiencing severe to extreme drought conditions during any given year. Drought conditions can persist in a region for several years, as occurred in the United States in the 1930s, 1950s, and early 2000s, and tree ring and other proxy records confirm that multiple-year droughts are part of the long-term …

The Social Dimensions Of Sustainability And Change In Diversified Farming Systems, Christopher M. Bacon, Christy Getz, Sibella Kraus, Maywa Montenegro, Kaelin Holland

Environmental Studies and Sciences

Agricultural systems are embedded in wider social-ecological processes that must be considered in any complete discussion of sustainable agriculture. Just as climatic profiles will influence the future viability of crops, institutions, i.e., governance agreements, rural household and community norms, local associations, markets, and agricultural ministries, to name but a few, create the conditions that foster sustainable food systems. Because discussions of agricultural sustainability often overlook the full range of social dimensions, we propose a dual focus on a broad set of criteria, i.e., human health, labor, democratic participation, resiliency, biological and cultural diversity, equity, and ethics, to assess social outcomes, …

Changes In Atmospheric Circulation Patterns Associated With High And Low Rainfall Regimes In The Hawaiian Islands Region On Multiple Time Scales, Henry F. Diaz, Thomas W. Giambelluca

United States Department of Commerce: Staff Publications

We examine a suite of climate variables in the North Pacific associated with different temporal scales of dry and wet episodes in the Hawaiian Islands. The goal is to ascertain whether varying the length in the occurrence of such events from seasonal to multi-decadal results from different ocean–atmosphere circulation patterns over the North Pacific region.We find that as the dryness period lengthens, the spatial scale of the anomalies widens, but the characteristics of the anomalous circulation fields exhibit elements evident at each time scale. At the longest (multi-decadal) time scales during the wet season (November–April), the major anomalous circulation features …

Feasability [Sic] Of Implementing Alternative Energy Technology On A High School Campus, Mackensey Ann Farmer

Theses Digitization Project

This study examines ways in which wind turbine and solar panel alternative energy technologies can be utilized on high school campuses. Information collected on how wind turbines and solar panels operate, the size, structure, power output, cost, advantages and disadvantages, was used to determine which specific wind and solar systems would best serve campus needs.

Interannual And Spatial Impacts Of Phenological Transitions, Growing Season Length, And Spring And Autumn Temperatures On Carbon Sequestration: A North America Flux Data Synthesis, Chaoyang Wu, Alemu Gonsamo, Jing Ming Chen, Werner A. Kurz, David T. Price, Peter M. Lafleur, Rachhpal S. Jassal, Danilo Dragoni, Gil Bohrer, Christopher M. Gough, Shashi B. Verma, Andrew E. Suyker, J. William Munger

School of Natural Resources: Faculty Publications

Understanding feedbacks of ecosystem carbon sequestration to climate change is an urgent step in developing future ecosystem models. Using 187 site-years of flux data observed at 24 sites covering three plant functional types (i.e. evergreen forests (EF), deciduous forests (DF) and non-forest ecosystems (NF) (e.g., crop, grassland, wetland)) in North America, we present an analysis of both interannual and spatial relationships between annual net ecosystem production (NEP) and phenological indicators, including the flux-based carbon uptake period (CUP) and its transitions, degree-day-derived growing season length (GSL), and spring and autumn temperatures. Diverse responses were acquired between annul NEP and these indicators …

Ua12/2/2 Talisman, Vol. 83, Wku Student Affairs

WKU Administration Documents

2012 Talisman:

• Couch, Drew. Life Inside the Suit – Big Red
• Waggoner, Tabitha. Mike Nichols
• Plunkett, Amber. Rememberng 9/11
• Cherry, Lauren. Understanding Each Other
• Brown, Bianca. East Meets Western – Confucius Institute
• Heyne, Richard. Cage the Elephant Comes Home
• Clements, Kristin. Never Solo – Track & Field
• Spees, Monica. Out on the Water - Hilltopper Bass Club
• Simmons, Natasha. Kentucky’s Miss America – Ann-Blair Thornton
• Alleyne, Zirconia. The Hungriest Fans – Football
• Wood, Shane. The Making of a Game – Football
• Duke, Alex. Building Confidence – Football
• Henye, Richard. Clearing the Air – Cheerleading
• Florence, Sara. Two-Wheeled Freedom – Bicycling …

A Synoptic Perspective Of The Record 1-2 May 2010 Mid-South Heavy Precipitation Event, Joshua D. Durkee, Lee Campbell, Kyle Berry, Dustin Jordan, Gregory Goodrich, Rezaul Mahmood, Stuart Foster

High Plains Regional Climate Center: Staff Publications

During 1–2 May 2010, a series of strong thunderstorms led to 41, 57, and 43 tornado, severe wind, and severe hail reports, respectively, across portions of the southern United States. In addition to severe weather, these storms also distributed recordsetting rainfall amounts across the mid-South region, which contributed to historic flooding across portions of central and western Kentucky and Tennessee (Fig. 1). This heavy precipitation event was sampled by multiple surface observational networks, including (but not limited to) 48 research-grade automated stations from the Kentucky Mesonet (www.kymesonet .org), first-order automated stations from the National Weather Service (NWS; www.ncdc.noaa.gov /oa/ncdc.html), and …

Estimation Of Surface Albedo And Directional Reflectance From Moderate Resolution Imaging Spectroradiometer (Modis) Observations, Tao He, Shunlin Liang, Dongdong Wang, Hongyi Wu, Yunyue Yu, Jindi Wang

United States Department of Commerce: Staff Publications

Land surface albedo is one of the key geophysical variables controlling the surface radiation budget. In recent years, land surface albedo products have been generated using data from various satellites. However, some problems exist in those products due to either the failure of the current retrieving procedures resulting from persistent clouds and/or abrupt surface changes, or the reduced temporal or spatial coverage, which may limit their applications. Rapidly generated albedo products that help reduce the impacts of cloud contamination and improve the capture of events such as ephemeral snow and vegetation growth are in demand.

In this study, we propose …

North American Carbon Program (Nacp) Regional Interim Synthesis: Terrestrial Biospheric Model Intercomparison, D.N. Huntzinger, W.M. Post, Y. Wei, A.M. Michalak, T.O. West, A.R. Jacobson, I.T. Baker, J.M. Chen, K. J. Davis, D.J. Hayes, F.M. Hoffman, A.K. Jain, S. Liu, A.D. Mcguire, R.P. Neilson, Chris Potter, B. Poulter, David T. Price, B.M. Raczka, H.Q. Tian, P. Thornton, E. Tomelleri, N. Viovy, J. Xiao, W. Yuan, N. Zeng, M. Zhao, R. Cook

United States Department of Commerce: Staff Publications

Understanding of carbon exchange between terrestrial ecosystems and the atmosphere can be improved through direct observations and experiments, as well as through modeling activities. Terrestrial biosphere models (TBMs) have become an integral tool for extrapolating local observations and understanding to much larger terrestrial regions. Although models vary in their specific goals and approaches, their central role within carbon cycle science is to provide a better understanding of the mechanisms currently controlling carbon exchange. Recently, the North American Carbon Program (NACP) organized several interim-synthesis activities to evaluate and inter-compare models and observations at local to continental scales for the years 2000–2005. …

Water Properties In Chesapeake Bay From Modis-Aqua Measurements, Seunghyun Son, Menghua Wang

United States Department of Commerce: Staff Publications

This study evaluates the performance of ocean color products derived from measurements of the Moderate Resolution Imaging Spectro-radiometer (MODIS) on the satellite Aqua using the standard near-infrared (NIR) and the shortwave infrared (SWIR)-based atmospheric correction algorithms in the Chesapeake Bay. The MODIS-Aquaderived normalized water-leaving radiances, nL_w(λ), and chlorophyll-a (Chl-a) data are comparedwith in situ radiometric measurements fromtheNASA SeaWiFS Bio-opticalArchive and Storage System(SeaBASS) database and Chl-a data from the Chesapeake Bay Water Quality Database. Results show that, using the NIR-SWIR combined ocean color data processing, improved nL_w(λ) and Chl-a data products can be produced in …

View Angle Effects On Modis Snow Mapping In Forests, Qinchuan Xin, Curtis E. Woodcock, Jicheng Liu, Bin Tan, Rae A. Melloh, Robert E. Davis

United States Department of Commerce: Staff Publications

Binary snow maps and fractional snow cover data are provided routinely from MODIS (Moderate Resolution Imaging Spectroradiometer). This paper investigates how the wide observation angles of MODIS influence the current snow mapping algorithm in forested areas. Theoretical modeling results indicate that large view zenith angles (VZA) can lead to underestimation of fractional snow cover (FSC) by reducing the amount of the ground surface that is viewable through forest canopies, and by increasing uncertainties during the gridding of MODIS data. At the end of the MODIS scan line, the total modeled error can be as much as 50% for FSC. Empirical …

Validation Of The Goes-R Abi Flood And Standing Water Algorithm Using Gauging Station Measurements And Interpretation Maps, Rui Zhang, Donglian Sun, Yunyue Yu, Anthony Stefanidis, Mitchell D. Goldberg

United States Department of Commerce: Staff Publications

Validation is an important task in the development of satellite remote sensing products. Strategies for validation vary depending on the nature of the products. The validation process of the flood and standing water product (FSW) for the Geostationary Operational Environmental Satellite - R series (GOES-R) is presented in this paper. A major challenge in the validation of the FSW product is the lack of ground truth flood maps and similar reference products from other satellite systems and other sources. To overcome this limitation, a two-level validation scheme for the FSW product is developed using the Moderate-resolution Imaging Spectroradiometer (MODIS) data …

Validation Of The Goes-R Abi Flood And Standing Water Algorithm Using Gauging Station Measurements And Interpretation Maps, Rui Zhang, Donglian Sun, Yunyue Yu, Anthony Stefanidis, Mitchell D. Goldberg

United States Department of Commerce: Staff Publications

Validation is an important task in the development of satellite remote sensing products. Strategies for validation vary depending on the nature of the products. The validation process of the flood and standing water product (FSW) for the Geostationary Operational Environmental Satellite - R series (GOES-R) is presented in this paper. Amajor challenge in the validation of the FSWproduct is the lack of ground truth floodmaps and similar reference products from other satellite systems and other sources. To overcome this limitation, a two-level validation scheme for the FSW product is developed using the Moderate-resolution Imaging Spectroradiometer (MODIS) data as a proxy. …

Characterization Of Turbidity In Florida’S Lake Okeechobee And Caloosahatchee And St. Lucie Estuaries Using Modis-Aqua Measurements, Menghua Wang, Carl J. Nim, Seunghyun Son, Wei Shi

United States Department of Commerce: Staff Publications

This paper describes the use of ocean color remote sensing data from the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard the Aqua satellite to characterize turbidity in Lake Okeechobee and its primary drainage basins, the Caloosahatchee and St. Lucie estuaries from 2002 to 2010. Drainage modification and agricultural development in southern Florida transport sediments and nutrients from watershed agricultural areas to Lake Okeechobee. As a result of development around Lake Okeechobee and the estuaries that are connected to Lake Okeechobee, estuarine conditions have also been adversely impacted, resulting in salinity and nutrient fluctuations. The measurement of water turbidity in lacustrine and …

Wildfire Regime Shifts In Temperate Forest Ecosystems: International Symposium In New Zealand, Tomas Veblen, Alan Tepley, Andres Holz

Joint Fire Science Program Research Project Reports

This project consisted of organizing and executing a one-day symposium on “Wildfire Regime Shifts in Temperate Forest Ecosystems” in conjunction with the triennial meeting of the Southern Connection Congress. The VIIth Southern Connection Congress drew together more than 350 environmental scientists and resource managers for its triennial meeting in Dunedin, New Zealand from January 25 to 30, 2013. The Southern Connection Congress (SCC) is a meeting of interdisciplinary researchers and natural resource managers who are interested in the biota and ecosystems of the temperate latitudes of the southern hemisphere. Attendees are from a wide range of research and professional disciplines …

Using Escaped Prescribed Fire Reviews To Improve Organizational Learning, Anne E. Black Dr., James Saveland Dr., Dave Thomas, Jennifer Ziegler Dr.

Joint Fire Science Program Research Project Reports

The US wildland fire community has been interested in cultivating organizational learning to improve safety and overall performance for a number of years. A key focus has been on understanding the difference between culpability (to be guilty) and accountability (to explain) and on re-orienting review processes towards building a collective account of (as opposed to finding individual blame for) unwanted outcomes. A variety of innovative methodologies have been developed, yet until this project, there has been no systematic reflection to determine whether or how any of the existing review processes might be assisting organizational learning. Through a series of five …

Affecting Risk: Improving Hazard Communication In The Wildland-Urban Interface, Melissa Wright Dr., Destiny Aman

Joint Fire Science Program Research Project Reports

Wildfire hazard is a growing problem in many areas of the United States, especially in the wildland-urban interface (WUI), where homes and other structures border or intermingle with forests, shrubs and grasslands. Despite years of educational outreach by fire management officials promoting effective and affordable mitigation strategies, research shows that residents, especially seasonal residents and those new to an area, still tend to under-invest in mitigation, even when they perceive their risk to be high. Meanwhile, the social and economic costs of wildfire have increased with fire size and intensity and far exceed the costs of mitigation. This problem has …

Assessing Fuels Treatments In Southern California National Forests In The Context Of Climate Change, Timothy J. Brown, Crystal A. Kolden, John T. Abatzoglou

Joint Fire Science Program Research Project Reports

One of the key uncertainties in fuels treatments is their longevity under a changing climate. Several recent studies have assessed fuel treatment effectiveness during historic fires, and in many cases found the treatment less effective than desired, particularly during extreme or record conditions. In 2007, southern California experienced one of the most severe fire seasons to-date due to record low fuel moistures early in the fire season (a key driver of the two-month long Zaca fire) and historic Santa Ana winds late in the season (resulting in several large late October fires). Climate change projections for the region suggest that …

Engaging The Humanities To Address Wildland Fire Issues, Fred Swanson, Nathaniel Brodie, Charles Goodrich

Joint Fire Science Program Research Project Reports

This project examined existing programs and potential options for collaborations among the humanities, art, science, land management, and public concerning wildfire and wildfire policy and education. These programs and partnerships include creative residencies; conferences, workshops, and symposia; art-science collaborative field studies; and community programs and partnerships. We also reviewed how popular literature frames, reflects and has affected our cultural understanding of wildfire. Our analysis concludes that, compared to the richness of the subject of wildfire, compared to the way wildfire encapsulates all the complexities and controversies of culture, history, and ecology, wildfire’s potential as a literary subject remains largely unfulfilled. …

Effect Of Fires On Soil Organic Carbon Pool And Mineralization In A Northeastern China Wetland, Hongmei Zhao, Daniel Q. Tong, Qianxin Lin, Xianguo Lu, Guoping Wang

United States Department of Commerce: Staff Publications

Fire occurs frequently over wetland, but little is known of its impact on soil carbon variations and carbon mineralization, process that are potentially important in global carbon cycle. To investigate this issue, we have designed and implemented a two-year field campaign to quality the effects of fire seasonality and frequency on soil carbon abundance and carbon mineralization in a wetland of the Sanjiang Plain in Northeastern China. A total of 4 burning experiments were conducted over 12 wetland plots from autumn 2007 to spring 2009. Our results show that after burning soil organic carbon (OC) increased in the burned soils …

Weighing The Merits Of Corn Ethanol, Christopher Fulk

Op-Eds from ENSC230 Energy and the Environment: Economics and Policies

Weighing the Merits of Corn Ethanol

Magnitude And Structure Of Lymantria Dispar Asiatica Infestations Of Common Forest Steppe Tree Species In Northern Mongolia, Nina Tiralla, Kai Füldner, Stefan Schütz

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

Lymantria dispar L. is one of the most serious forest pests worldwide by infesting large forest areas involving massive tree dieback. Unlike outbreaks of Lymantria dispar L. in Germany that cause massive defoliation, observations of outbreaks of Lymantria dispar asiatica made in the research area Khonin Nuga, West Khentii, Mongolia during the past six years showed only punctual defoliation, and dieback was extremely scarce. However, information on the performance of Lymantria dispar asiatica and the corresponding reaction of host tree species in Khonin Nuga is rare. Therefore, this study concentrates on the examination of primarily affected tree species and the …

Bird Red List And Its Future Development In Mongolia, Sundev Gombobaatar, D. Samiya, Jonathan M. Baillie

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

With the involvement of the World Bank, Zoological Society of London, Dutch Government and National University of Mongolia, the volumes of Mongolian Red Lists of Fish, Amphibians and Reptiles, Birds and Mammals were completed, and Mongolia is now among the few nations that have up-to-date conservation assessments for all vertebrates. Of the 476 assessed native bird species of Mongolia, 10% were categorized as regionally threatened including Near Threatened. A further 0.6% were categorized as Critically Endangered (CR), 1.7% as Endangered (EN), 3.3% as Vulnerable (VU), and 4.4% as Near Threatened (NT). Almost 90% of Mongolian birds are categorized as Least …

Morphological Disparity Among Rock Voles Of The Genus Alticola From Mongolia, Kazakhstan And Russia (Rodentia, Cricetidae), V. N. Bolshakov, I. A. Vasilyeva, A. G. Vasilyev

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

The Central Asian high-mountain or rock voles of the genus Alticola Blanford, 1881 are one of the least studied groups of rodents. Taxonomic status of various geographic forms is not yet established until our days. This genus is not enough examined by biochemical and molecular genetic methods. We analyzed morphological disparity among rock voles of the genus Alticola from 8 localities. The samples studied represent 7 nominal species: A. semicanus Allen, 1924 (East Mongolia), Alticola argentatus Severtzov, 1879 (East Kazakhstan), A. tuvinicus Ognev, 1950 (Russia: Tuva), A. olchonensis Litvinov, 1960 (Russia: Olchon Island), A. macrotis Radde, 1861 (Russia: Khamar-Daban ridge), …

Long-Term Research On Biodiversity In West Khentey, Northern Mongolia, Michael Mühlenberg

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

Biodiversity is studied at ecosystem, community, and species level around Khonin Nuga, where the University Goettingen supports a research station since 15 years (established 1997 in cooperation with the National University of Mongolia). In that period 39 scientists have been involved and 67 students graduated with theses (7 PhD) about field work at that station. Inventories started at 1998 for several taxa and are now compiled in a book, which will be printed 2012 in Ulaanbaatar. It covers fungi, lichens, plants, several insect groups, spiders, crustaceans, and all vertebrate classes. For all taxa adequate experts proved the species lists. Because …

Nestling Food In The Desert Wheatear Oenanthe Deserti In The Dzungarian Gobi, Mongolia, Ueli Rehsteiner

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

The quality and size of nestling food of the Desert Wheatear Oenanthe deserti ssp. atrogularis were investigated in the spring of 2001 in the Dzungarian Gobi in Mongolia. Data are based on observations of nine pairs. Nestling food consisted of several taxa caught on the ground and in the air. Diptera, Coleoptera larvae, and Hymenoptera were the most frequent prey, that is, they contributed 17 to 30% of all food items each. The food composition changed with nestling age and season.

Food item size decreased with date. A higher proportion of multiple prey loadings were brought to nestlings in the …

Protection Of The Natural And Cultural Heritage Of The Mongolian Altai, Ulikpan Beket, Hans D. Knapp

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

The Altai-Sayan Ecoregion is known as a hotspot of biodiversity with large wilderness landscapes and a high rate of endemism in Central Asia and Siberia. There are many large and important protected areas of different categories. Parts of the Russian Altai, the “Golden Mountains of Altai”, are inscribed as World Natural Heritage. Also the neighbouring countries contain pristine landscapes, which could be a potential for an extension to a transnational serial World Heritage Site.

The Mongolian part of the ecoregion is characterized by very diverse landscapes and vegetation complexes: Deserts, semi-deserts and desert steppes in arid basins, river floodplains, salt …

On The Importance Of Pollen Morphology In Classification Of Chenopodiaceae In Mongolia, Gaadan Punsalpaamuu, Frank Schluetz, Tserendorj Gegeensuvd, Davaadorj Saindovdon

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

The pollen morphology of 18 species from 12 genera of Chenopodiaceae native to Mongolia was studied. Plants were collected during field courses and research projects on useful plants and are deposited in the Herbarium of the Mongolian State University of Education. Chemical preparation was carried out in the Palynological Laboratories at the School of Natural Sciences of the Mongolian State University of Education and the Department of Palynology and Climate Dynamics of the University of Göttingen in Germany. The results show, that all investigated species are distinguishable in terms of pollen morphology bases on their pollen grain sizes, exine thickness …

Home Range Characteristics Of Corsac And Red Foxes In Mongolia, Tserendorjiin Munkhzul, J. D. Murdoch, R. P. Reading

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

Red (Vulpes vulpes) and corsac foxes (V. corsac) live sympatrically throughout most of Mongolia, but few details of their home range characteristics exist. We captured and radio-tagged 13 red fox (♂ = 5, ♀ = 8) and 15 corsac foxes (♂ = 8, ♀ = 7) between 2004 and 2008. We tracked their movements to estimate home range sizes and examined the effects of four factors on home range size, including sex, age, season, and year. We determined mean home range size for 12 red and 10 corsac foxes that had sufficient data using fixed kernel …

Pleistocene Faunal Fossils From Bayangol I Site, Bulgan Aimag, Mongolia, Takao Sato, Fedora Khenzykhenova, Toshiaki Tsurumaru, Masao Ambiru, Jun Takakura, Yoshiaki Otsuka, Shigeo Iida, Natalya Schepina, Batmunkh Tsogtbaatar

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

During excavation of the Bayan-gol I Palaeolithic site in the Bulgan Aimak, Mongolia, some faunistic remains were recovered attributable to Aves (two species), Anura (two species), and mammals (three species). The fossil remains bear a considerable similarity to the corresponding species of today in Mongolia.