A Geospatial Inventory and Preliminary Valuation of Human Uses of Rhode Island Coastal Ponds
Rob Thompson, MAF, University of Rhode Island
Tracey Dalton, MAF, University of Rhode Island
Jim Opaluch, ENRE, University of Rhode Island
Eric Schneider, RI DEM
John Lake, RI DEM
A Geospatial Inventory and Preliminary
Valuation of Human Uses of Rhode Island
Collect data in the summers of 2014 and 2015.
High resolution spatial data concerning human use of the
Surveys of pond users to better understand how they use,
experience, and value the ponds.
Surveys of shellfish populations.
To collect robust spatial data of human uses and
Better understand current conditions
Mapping and Modeling Human Uses
What can be mapped and modeled?
Basic physical footprint
Intensity of the use
Travel and operating patterns
Seasonality (we will only do summer)
Hours of day
Tides and weather conditions
Behavioral attributes of the use
Methods for Mapping and Valuation
Human uses (URI)
Intercept surveys and mapping
Boat based offset transect surveys (B-BOTS)
Shellfish resource assessments and mapping (RI
DEM) based upon results of B-BOTS and random
Collecting all currently available geospatial data for
the coastal ponds.
Over 50 datasets thus far, including environmental, social and
regulatory spatial data.
Methods: Intercept Surveys
Short intercept surveys of people using the ponds.
Boat ramps, marinas, kayak rental, mooring fields, anchored
boats, and along shore.
Dates and times for intercept surveys will be
randomly selected to avoid bias.
Selection of interviewees.
Ask people to record their last trip and current trip.
Route and place where they spent the most time.
Other activities that enhance or degrade their experiences.
Methods: Intercept Surveys
Various management options
Economic and demographic questions
Trips per year
How it works.
Transects lines will be laid
out on each pond.
A boat following the
transects will be able to
survey the entire pond.
Order of transects
Laser locator binoculars
Measure the straight line
distance & angle to every
Calculate position of each
Recording Attributes in ArcPad
The list of attributes will be
updated based upon key
informants and on-the-pond
Create a series of drop down
choice menus that
immediately appears when a
record was created.
The recorder would enter data
Record weather (temp., cloud
cover, wind direction) and sea
state every hour.
Putting it all together
Economic study can put values on various activities and then
those values can be distributed across the ponds based on B-
The intercept survey can provide information about how users
perceive interactions and B-BOTS can be used to map those
Intercept mapping can be used to provide information about
routes and destinations, while B-BOTS accurately maps overall
usage of space.
The RI DEM shellfish assessment and B-BOTS together will
tell us about the human impact on shellfish.
and Planning for Shellfish Management
Developing impact relevant attributes.
E.g. daily or once a year.
Movement in and out of use areas
Impacts into indicators and standards
Perceptions of attributes by others
Accuracy of perceptions
Modeling possible impacts