Environmental Monitoring Commons^™

Using Nitrate, Chloride, Sodium, And Sulfate To Calculate Groundwater Age, Kimm Crawford, Terry Lee

Sinkhole Conference 2015

Regression analysis is used to identify monotonic trends to assign water age using ion data from two large well water databases from southeast Minnesota (SE MN). Nitrate (NO3-N), chloride (Cl), sodium (Na), and sulfate (SO4) ions in the commonly used aquifers in SE MN can be used as groundwater tracers since they are either entirely or partly anthropogenic in their sources, their loading occurs on a regional scale, and they are almost entirely conserved. Ion concentrations over time are used to establish six trend patterns. Two patterns are unchanging (background and stable above background), and four are changing (linear up, …

Conduit Flow In The Cambrian Lone Rock Formation, Southeast Minnesota, U.S.A., John D. Barry, Jeffrey A. Green, Julia R. Steenberg

Sinkhole Conference 2015

The karst lands of southeast Minnesota contain more than one hundred trout streams that receive perennial discharge from Paleozoic bedrock springs. Several of the Paleozoic bedrock units that provide discharge are karst aquifers. Field investigations into the flow characteristics of these formations have been conducted using fluorescent dyes to map groundwater springsheds and characterize groundwater flow velocities for use in water resource protection. Recent field work has focused on the Cambrian Lone Rock Formation, a siliciclastic unit consisting of very fine-grained sandstone and siltstone with minor beds of shale and dolostone. The formation is mapped within tributary valleys of the …

Human Impacts On Water Quality In Coldwater Spring, Minneapolis, Minnesota, Sophie M. Kasahara, E. Calvin Alexander Jr., Scott C. Alexander

Sinkhole Conference 2015

Coldwater Spring in Minneapolis, Minnesota was the water supply for Fort Snelling from the 1840s to 1920. The spring site has been declared a sacred site by some federally recognized Native American tribes. The site is managed by the National Park Service. This project has monitored the water chemistry of Coldwater Spring to document human impacts on the spring’s water quality. Temperature, dissolved oxygen, conductivity, pH and anions were monitored weekly and cations and alkalinity monitored monthly at Coldwater Spring and the adjacent Wetland A from 15 February 2013 through 18 January 2015. Coldwater Spring’s water flows through fractures in …

Karst Hydrogeologic Investigation Of Trout Brook, Joel T. Groten, E. Calvin Alexander Jr.

Sinkhole Conference 2015

Trout Brook in the Miesville Ravine County Park of Dakota County Minnesota is the trout stream with the highest nitrate concentration in the karst region of southeastern Minnesota. Water quality data from 1985 and 1995 (Spong, 1995) and from 2001, 2002, 2006, 2010, and 2014, collected by the Dakota County Soil and Water Conservation District (Dakota SWCD, 2014) document an increasing level of nitrate in Trout Brook. A karst hydrogeologic investigation was designed to measure nitrate levels at sampling points along the stream and to increase our understanding of the source and movement of nitrates throughout the length of Trout …

Tracer Studies Conducted Nearly Two Decades Apart Elucidate Groundwater Movement Through A Karst Aquifer In The Frederick Valley Of Maryland, Keith A. White, Michael K. Cobb, Thomas Aley, Ethan Weikel

Sinkhole Conference 2015

A pair of groundwater tracer studies at a single karst test site were completed 18 years apart. The results of these studies have provided evidence of both relatively rapid advective transport via conduits and an extreme capacity for dye storage and retardation. The tracer results, coupled with other subsurface investigation data, are used to develop a conceptual model for groundwater movement through this karst aquifer in the Frederick Valley of Maryland, as well as identify implications for remediation. Three fluorescent tracer dyes used in the initial study were detected in several background monitoring locations established for the second study conducted …

Hydrogeological Dynamic Variability In The Lomme Karst System (Belgium) As Evidenced By Tracer Tests Results (Karag Project), Amaël Poulain, Gaëtan Rochez, Vincent Hallet

Sinkhole Conference 2015

Paleozoic carbonate aquifers represent major groundwater resources in Belgium. Karstification processes affect most of them and Belgium counts many hydrologically active karst networks. Given the intrinsic vulnerability of such geological objects, comprehensive studies are required in order to improve their protection and management. The KARAG project (Karst Aquifer ReseArch by Geophysic, 2013-2017) aims to identify the specific dynamic of karst aquifers by using geophysical and hydrogeological tools. This research is funded by the Belgium National Fund for Scientific Research (FNRS) and conducted by the University of Namur, University of Mons and the Royal Observatory of Belgium. The LKS – Lomme …

Guide To The Dr. Jane Claire Dirks-Edmunds Papers, Linfield College Archives

Linfield Archives Finding Aids

This collection reflects the life work of Dr. Jane Claire Dirks-Edmunds, a student and professor of Linfield College. A dedicated and scrupulous woman, the majority of the collection consists of her research, teaching materials, and correspondence. The collection also includes research and correspondence by Dr. Jane Claire Dirks-Edmunds’s mentor, Dr. James A. Macnab.

U.S. Drought Monitor, October 13, 2015, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for October 13, 2015 (10/13/15) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Mitigating The Risk Of Extreme Water Scarcity And Dependency: The Case Of Jordan, Joep F. Schyns, Arwa Hamaideh, Arjen Y. Hoekstra, Mesfin Mekonnen, Marlou Schyns

Daugherty Water for Food Global Institute: Faculty Publications

Jordan faces great internal water scarcity and pollution, conflict over trans-boundary waters, and strong dependency on external water resources through trade. This paper analyzes these issues and subsequently reviews options to reduce the risk of extreme water scarcity and dependency. Based on estimates of water footprint, water availability, and virtual water trade, we find that groundwater consumption is nearly double the groundwater availability, water pollution aggravates blue water scarcity, and Jordan’s external virtual water import dependency is 86%. The review of response options yields 10 ingredients for a strategy for Jordan to mitigate the risks of extreme water scarcity and …

Linking Seasonal Predictions To Decision-Making And Disaster Management In The Greater Horn Of Africa, Tsegaye Tadesse, Tonya Haigh, Nicole Wall, Andualem Shiferaw, Ben Zaitchik, Shimelis Beyene, Getachew Berhan, Jacob Petr

National Drought Mitigation Center: Faculty Publications

Seventy-six participants, including experts from seven countries from the Greater Horn of Africa (GHA) and project coinvestigators from the United States, met to discuss experimental seasonal prediction models and products for the GHA, to engage decision-makers and users in the assessment of hydroclimatic information requirements, and to use feedback to build a framework to support decision-making and disaster management. In pre- and postworkshop surveys, workshop participants were asked how the utility of forecasts to decision-makers might be improved. Their recommendations are presented

U.S. Drought Monitor, October 6, 2015, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for October 6, 2015 (10/6/15) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Using Future Benefits To Set Conservation Priorities For Wetlands, Samuel B. Merrill

Journal of Ocean and Coastal Economics

In an era of rising sea levels, costal land managers including land trust representatives, municipal planners, and others contributing to decisions about whether to develop or protect coastal parcels do not have viable means of evaluating future values on wetlands that will be created when sea levels rise. This project develops and tests a software modeling approach to help address this issue, in combination with a novel, expert-opinion driven benefit-cost framework. The beta test used three parcels in Scarborough, Maine: Hampton Circle, Maine Audubon, and Pine Point. It used a group of experts to 1) allocate initial values to these …

Economic Valuation Of Marine And Coastal Ecosystems: Is It Currently Fit For Purpose?, Nick Hanley, Stephen Hynes, David Patterson, Niels Jobstvogt

Journal of Ocean and Coastal Economics

In this paper, we consider whether the current “state of the art” of environmental valuation is suitable for producing policy-relevant estimates of the benefits or costs of changes in marine and coastal ecosystems. We review recent changes in European legislation which has meant an increasing demand for economic valuation from the policy and regulatory community. The next section considers, at a more conceptual level, whether the economic “toolbox” and scientific evidence is up to the task of meeting the demand for more evidence-based policy. Finally, three case studies are used to explore the nature of the valuation task and review …

Know Tommorrow Brown University Poster, Shepard Fairey, Risd Archives

Ecology and Environment

Poster for Brown University student event to demand action to counter climate change. "Brown emPOWER is joining dozens of colleges across the country for Know Tomorrow, a national day of action to raise awareness about climate change and its consequences. 2015 is the year for climate action as world leaders meet for the UN climate talks in Paris to sign a global agreement on climate. On October 2nd, join us for an evening of live music, engaging speakers, and environmental action on the Main Green at Brown University! Featuring: Kerry Kennedy, What Cheer? Brigade, Voces Verdes- Latino Leadership in …

Documenting A Wild Reality: The Experiences, Perceived Issues And Proposed Solutions Of Four Actors In Human Wildlife Conflict In Jangwani Corridor, Tanzania., Jessie Springer

Independent Study Project (ISP) Collection

This study compares and contrasts the perspectives, experiences, perceived issues and future solutions of four different actors interfacing with wildlife in Jangwani Corridor, Northern Tanzania, bordering Lake Manyara National Park. This project was conducted in Fall 2015 in Jangwani Corridor and Kigongoni Primary School from November 6th to December 2nd, 2015. The sample frame included all villagers living and working in Jangwani Corridor specifically looking at wildlife officers, poachers, farmers and students. I conducted three key informant interviews: one with the TANAPA park warden on background of the corridor, one with a cultural tour guide, who grew up in the …

The Prairie Post Quarterly Newsletter Of The High Plains Regional Climate Center- October 2015, Martha Shulski, Natalie Umphlett, Bill Sorensen, Glen Roebke, Crystal J. Stiles

Prairie Post: Quarterly Newsletter of the High Plains Regional Climate Center

Inside this issue:

Message from the director........................................1

Staff spotlight...........................1

New website design and products.....................................2

Training workshops................3

AWDN information.................4

Update on regional climate conditions and El Niño..........4

Research highlight..................5

Outreach/engagement.........5

Recent and upcoming travel and activities.............................6

Report To The Commissioner Of Soil And Land Conservation On The Trend Of The Western Australian Pastoral Resource Base 2015, David Warburton, Philip Thomas

Natural resources published reports

This report provides a regional overview of the trend in the pastoral rangelands of Western Australia, based on data from the Bureau of Meteorology, the Annual Return of Livestock and Improvements (submitted annually by pastoral lessees) and the Western Australian Rangeland Monitoring System (WARMS), for which data are available for over 20 years. The report provides a context for assessment of the range condition and trend of individual pastoral leases within defined regions of the state, as well as providing a current assessment of the status of each of the regions’ rangelands, and the drivers (both seasonal and managerial) affecting …

Droughtscape, Fall 2015, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

Contents

Director’s column.

NDMC 20th anniversary 2

Employment opportunity

Third quarter 2015 climate summary

Third quarter 2015 impacts summary

Workshop in Ethiopia

San Antonio multi-hazard tournament

Healthy soil is drought buffer

U2U Award

Cost-benefit analysis for utilities managing drought

NDMC helps with rural poll questions on climate

Introducing our post-docs

South Korean visitors

Aulacoseira Stevensiae Sp. Nov. (Coscinodiscophyceae, Bacillariophyta), A New Diatom From Ho Ba Bê, Bac Kan Province, Northern Viêt Nam, D. Marie Weide

Department of Earth and Atmospheric Sciences: Faculty Publications

A new species of Aulacoseira Thwaites is described from piston core samples from Ho Ba Bê in the karst region of northern Viêt Nam. Although it closely resembles Aulacoaseira subborealis (Nygaard) Denys, Muylaert & Krammer, A. stevensiae Weide sp. nov. is designated a new species based mainly on morphological differences in the spines, including invariably inclined spines that are rounded, differences in the Ringleiste, areola pattern and overall size. Aulacoseira stevensiae is present throughout a core that spans the last 500 years. It was a major component of the diatom community, but the populations have recently decreased, possibly being outcompeted …

The Environment And Civil War: Exploring The Relationship Between The Environmental Performance Index And Incidence Of Internal Armed Conflict, Katerina N. Krohn

Student Publications

The state of the environment is receiving increasing attention. Environmental quality’s possible relationship to violent conflict attracts both popular and academic interest. Prior research has found support for the idea that environmental scarcity is related to higher occurrences of civil war. There have been few comprehensive quantitative studies regarding this relationship. This study tests a more general argument that higher environmental quality can lead to fewer occurrences of internal armed conflict. The study utilizes an environmental performance index found in the Quality of Government Standard Dataset to test its hypothesis. The study finds that the higher the environmental performance index …