Upper Roanoke River Watershed Assessment

Welcome to my final assessment project on the Upper Roanoke River Watershed! I chose to use the Story Map application from ersi ArcGIS website. 

The Upper Roanoke River Watershed Assessment Project

Geographic Information Systems using esri's ArcGIS Trial Version

For my equipment assignment, I chose to research and learn about Graphic Information Systems, most commonly referred to as GIS. GIS uses geographic information to find answers to questions enabling professionals and communities to make better decisions. GIS also provides the necessary tools to create, use, and share graphic information with others.

There are many tools within GIS that facilitate information and map sharing with specific groups, provide links for relaying additional information, and embed maps within websites or to make a web application. Data within a GIS map has spatial and attribute information associated with it to explain not only where something is, but what it is. This allows users to analyze trends and find relationships to optimize the quality of decision making.

In the esri Gallery there are numerous project examples using GIS for mapping critical habitat of endangered species, illustrating the ecological footprint of countries, and mapping wetlands.  GIS can be a powerful tool for conservationists, allowing them to relay information and connect readers in an inspiring way to an environmental issue or an endangered species using a tool called a story map. Below are two of my favorite story maps sourced from the gallery on the esri GIS website. The story title is an active link to take you to the story.

Welcome to the Anthropocene Era

The Struggle to Save Elephants

I've understood the importance of using GIS and also seen great examples of how it helps communities relay and find the answers they seek to environmental issues but I’m a novice when it comes to using it. Therefore, I chose to download and work through a free, online tutorial: Getting Started with GIS for Versions 10.1 and 10.2. This self-paced tutorial taught the basics like vector data and corresponding attribute information. It covered the more advanced raster grid cell system where each cell stores a value that can be discreet or a continuous value like precipitation or elevation. It explained how data is stored for both vectors and rasters. The tutorial demonstrated map navigation, available map views, and how to find existing information. The tutorial was very beneficial as it allows for hands-on learning and practice.

Today as I was putting together this assignment, within minutes,  I was able to prepare a map showing the greater Roanoke area that showed the Roanoke River flood zones, VA Impaired Waters and Causes of Impairment. I was even able to add the USFWS Wetlands on the GIS representation.

From this stage, I could go on to create a story-like presentation further developing and creating a teaching and communication tool. Watershed assessment project, here I come!

Invasive Species

Upcoming Webinar Event - Groundwater Levels, Extraction and Climate Connections in the United States, 1949-2009.

The next Penn State Water Resources Extension webinar on Wednesday, November 19, 2014 from 12:00 to 1:00 PM EST will discuss Groundwater Levels, Extraction and Climate Connections in the United States, 1949-2009.  The presenter will be Dr. Tess Russo, an Assistant Professor in the Department of Geosciences at Penn State University.  
 
When: Wednesday, November 19, 2014 - 12:00 to 1:00 PM
Title: Groundwater Levels, Extraction and Climate Connections in the United States, 1949-2009Presenter: Tess Russo, Assistant Professor, Department of Geosciences, Penn State University
Where: the live webinar can be viewed at https://meeting.psu.edu/water1

Webinar description:
Groundwater constitutes a critical component of our water resources, especially during dry seasons and droughts, and in regions lacking reliable access to surface water. This seminar will cover the results of a continental-scale study revealing groundwater depletion trends. Analysis of historical groundwater level records indicates groundwater storage declined between 1949 and 2009 throughout much of the continental United States. Most notably, groundwater level declines in the southern and eastern U.S. are comparable to declines in areas of the often-discussed water stressed areas of the High Plains and southwest U.S. The causes of groundwater level change are multifaceted, varying in time and space across the U.S. Correlations between pumping rate and groundwater level were observed in a majority of counties. Climate is also clear controlling factor on groundwater levels, with changes in groundwater level correlating well with long-term climate patterns including the Pacific Decadal Oscillation. 

About the Presenter:
Tess Russo is a hydrologist who focuses on quantifying hydrologic system responses to environmental change with the objective of informing management and restoration decisions. Tess received her Ph.D. from the University of California, Santa Cruz, and was an Earth Institute Postdoctoral Fellow at Columbia University before joining the Geosciences Department at Penn State as an assistant professor in August 2014. Her research interests include riparian flow and solute dynamics, managed aquifer recharge, and agricultural water management, including quantification of both regional-scale water availability and field-scale transport of agrochemicals. Tess currently has projects in India, Kenya, Tanzania, Papua New Guinea, and the United States. 

How to Participate

• The live webinar will occur from 12:00 to 1:00 PM and is accessible at: https://meeting.psu.edu/water1
• You can access this webinar simply by signing in as a "guest".
• Taped versions of each webinar in the series are available at: http://extension.psu.edu/water/webinar-series/past-webinars
• If you have not registered for past water webinars, please visit the following website to register so we can keep you updated about future webinar offerings: http://extension.psu.edu/water/webinar-series/schedule/registration
• If this will be your first webinar, you may want to test your computer and internet connection for compatibility at:https://meeting.psu.edu/common/help/en/support/meeting_test.htm

Additonal Upcoming Webinars 
Additional webinars on various water resources topics will be offered each month - generally on the last Wednesday of the month. A full schedule of upcoming webinars can be found at: http://extension.psu.edu/water/webinar-series/schedule

• December 17, 2014 – The Development of Sustainable Bioremediation Technologies to Solve Global Water Challenges, Dr. Rachel Brennan, Penn State University

Please pass this along to anyone that might be interested in attending these webinars.

Bryan Swistock
Water Resources Extension Specialist
Penn State University 

Water and Hydrogeology of Watersheds

The following blog post is a summary of material found in Chapter 3, Water and Hydrogeology of Watersheds from the text by Kaufman, M., Rogers, D., and Murry, Kent. 2011. Urban Watersheds; Geology, Contamination, and Sustainable Development. Taylor and Francis Group, LLC. Boca Raton, FL.

Clean water is essential to maintain health of all species on earth. Water and geology help to shape our natural environment. We are learning more and more about how human impacts in the natural and built environmental are impacting our ground and surface waters.

Groundwater in Watersheds

Groundwater is defined as “any water beneath the surface of the ground”. Apart from the bound water in icecaps and glaciers, over 95% of all freshwater sources on Earth come from groundwater. Imagine poring all the earth’s groundwater out onto the US land surfaces, it would spread to a depth of a half-mile. On a global scale, if water covered all land surfaces, the water would be 150’ deep. The total amount of groundwater on Earth is 100 times more than all the visible surface water in lakes, streams, rivers, and swamps.

Much of the groundwater of the US is found in aquifers. An aquifer is considered a “mappable geologic unit” that is created by water-saturated porous media, usually sands and gravels, which have the capacity to store and move large amounts water. Finer grained materials like clay and silt may not transmit water quickly enough to be considered as an aquifer media. Up to 50% of the US population obtains its drinking water from groundwater sources. In addition, agriculture uses groundwater at about 40% for irrigation of crops.

Groundwater is in constant motion under the force of gravity and moves from higher to lower areas of pressure. Movement occurs through a system of passageways of unsaturated pore spaces in soils and sediment. This zone of aeration is known as the vadose zone.

Sourced: http://water.usgs.gov/edu/graphics/wcinfiltrationsoilzone.gif

Pressure is naturally higher under mountains and hills due to mass and valleys are under lower pressure; resulting in a pressure gradient where groundwater flows to the surface and can interact with surface water.

Sourced: http://water.usgs.gov/edu/graphics/wcgwdischarge.jpg

Groundwater and Surface Waters

Sourced: http://water.usgs.gov/edu/watercyclesummary.html

Groundwater and surface waters are interconnected in watersheds. Climate, vegetation, topography, rainfall, and geology all influence patterns of surface water flow and drainage density. 

Ground water provides an important influx of water to surface waters that serves to protect aquatic life through periods of low precipitation and drought. Streams, lakes and wetlands can gain groundwater; conversely surface waters can flow into groundwater. Soils with low conductivity in the vadose zone can impair ground and surface water communication. Additionally, a lowering of the water table due to drought, local geology, or excessive groundwater use can impair connectivity.

Important research must be done on ground and surface water connectivity within urban areas. Toxins and pollutants, like those found in the first flush of stormwater runoff can contaminate groundwater that is close to the surface. Groundwater contamination also has the ability to reach surface waters. Additionally, removal of large groundwater quantities near a surface water body can cause some loss of the surface waters; impairing aquatic functions.

Urban area watershed influences are numerous and can include: runoff from impervious surfaces creates increased erosion and sedimentation, petroleum-based contaminants from vehicles, groundwater contamination from industry, wetland destruction, wastewater discharge, combined sewer overflows (CSOs), aging infrastructure, stream bed alterations, other point and non-point pollution sources, dam construction altering groundwater levels, and natural drainage system alterations.  

The Upper Roanoke River Roundtable

Building Climate Resilience in Communities

The Watershed Academy is a program developed by the EPA's Office of Water. The goal is to provide information and training for professionals seeking to learn and implement watershed approaches to natural resource conservation and urban management.

Through this free program, individuals can complete self-directed training lessons and earn a certificate of professional development. Available training also includes monthly live web-based seminars on relevant topics. I participated in a live webcast on Climate Resilience; What to Expect, How to Prepare, and What You Can Learn From Others.  Previous webcasts are also available online.

Resiliency is the concept of communities being about to dynamically adapt in the face of a changing climate. The webcast included information from the National Climate Assessment Report, the new Workbook for Developing Risk-Based Adaption Plans, and a case-study of the San Juan National Estuary Program that implemented the adaption plan using the risk-based principles. 

In response to the President's Better Buildings Challenge, the City of Roanoke has made the commitment to reduce energy consumption by 20 % in public buildings by 2020. As of May 2014, headway has been made with Roanoke achieving 11% improvement in building energy performance. Read the full White House Press Release Fact Sheet on What Climate Change Means for Virginia here.