C:\Documents And Settings\Sachink\Desktop\Shilpa Study\Gis Projects Test
-
Upload
shilpagupta1984 -
Category
Technology
-
view
214 -
download
1
description
Transcript of C:\Documents And Settings\Sachink\Desktop\Shilpa Study\Gis Projects Test
An introduction to An introduction to data sources and data sources and possible projects.possible projects.
Marc AlbrechtMarc Albrecht
University of Nebraska at KearneyUniversity of Nebraska at Kearney
Department of BiologyDepartment of Biology
GIS Projects: An OverviewGIS Projects: An Overview
Large companies and institutions Large companies and institutions are undertaking huge, complex GIS are undertaking huge, complex GIS projects all the time. You have run projects all the time. You have run across some examples. The across some examples. The purpose here is to show you some purpose here is to show you some of data sources available to you, of data sources available to you, and some project ideas that might and some project ideas that might be feasible in the classroom.be feasible in the classroom.
OK, Ready to get started?OK, Ready to get started?
Part III: Data sources:Part III: Data sources:– I use many Nebraska sources in this presentation I use many Nebraska sources in this presentation
because it is the state where I currently live. because it is the state where I currently live. Therefore I am most familiar with it resources. Most Therefore I am most familiar with it resources. Most states now have similar resources, as you find them, states now have similar resources, as you find them, please share with us!please share with us!
– Keep in mind the good part:Keep in mind the good part: most data from state most data from state and Federal sources are FREE (maybe cost of and Federal sources are FREE (maybe cost of duplication).duplication).
Its not really free of course, but it does make you feel like Its not really free of course, but it does make you feel like your tax dollars are working for you!your tax dollars are working for you!
To Start a To Start a Project you Project you
need:need:
1.1. GIS software:GIS software: ArcExplorer or other ArcExplorer or other
free GIS viewerfree GIS viewer
2.2. Basemaps:Basemaps: Examples coming up!Examples coming up!
3.3. Your data:Your data: If you have some, and If you have some, and
can input it – that’s can input it – that’s great!great!
4.4. Training:Training: If you can find attend If you can find attend
a class - or do it a class - or do it online, it helps!online, it helps!
Data Sources Some base maps that Some base maps that
are available (many are available (many for for free!free!).).– 1. Topographic maps1. Topographic maps
for Nebraska have been for Nebraska have been digitized by the digitized by the Nebraska Nebraska Conservation and SurveConservation and Survey Division Servicey Division Service
– Other maps are Other maps are available from state available from state agencies or through the agencies or through the USGS map download arUSGS map download areaea
2. Aerial Photos
National Aerial Photography National Aerial Photography Program (NAPP) Program (NAPP) – Cycle 1 ended 1991Cycle 1 ended 1991– Cycle 2 started in 1999.Cycle 2 started in 1999. – Resolution is about 2 meters!Resolution is about 2 meters!– One file like this is about 25 Mb One file like this is about 25 Mb
in sizein size– ButBut also available as JPEGs at also available as JPEGs at
about 2.5 Mb eachabout 2.5 Mb each– note: the next slide may take a note: the next slide may take a
moment to load!moment to load! Publicly available through the Publicly available through the
USGS site and, for Nebraska, USGS site and, for Nebraska, through the Department of through the Department of Natural Resources (DNR)Natural Resources (DNR)
4. Other Base Maps4. Other Base Maps The Nebraska Department of Natural Resources has The Nebraska Department of Natural Resources has
many base maps to download!many base maps to download!– Soil type (2 acre resolution), Land use (8 acre resolution)Soil type (2 acre resolution), Land use (8 acre resolution)– Erosion maps, Section lines/points, contours (30 m res)Erosion maps, Section lines/points, contours (30 m res)– NRD, hydrologic, and political boundaries and more!NRD, hydrologic, and political boundaries and more!– How to get there? Go to their site - select ‘Subjects A-Z’, How to get there? Go to their site - select ‘Subjects A-Z’,
then ‘D’ (for Data Bank), then ‘Spatial/GIS databases’then ‘D’ (for Data Bank), then ‘Spatial/GIS databases’ Look for ‘GIS databases request site’Look for ‘GIS databases request site’ You just request a map type and location and give your email, they You just request a map type and location and give your email, they
email you a ftp address when the job is processed!email you a ftp address when the job is processed!
Part IV: Ongoing Projects Part IV: Ongoing Projects and other Softwareand other Software
USGS GAP USGS GAP AnalysisAnalysis– 33 States and 33 States and
200 agencies 200 agencies involvedinvolved
– Digital mapping Digital mapping of vegetation and of vegetation and vertebrate animal vertebrate animal distributions in distributions in the USAthe USA
– invertebrates too invertebrates too maybe!maybe!
A Geographic Approachto Planning for Biological
Diversity
What Other Software is out What Other Software is out there?there?
EPA “BASINS” (this is a hyperlink)
– 500 Mb database per state– Free– hooks into ArcView (required)– 3.0 is current and very useful version– useful for researchers to citizens
groups!
Spatially Distributed Data in BASINSSpatially Distributed Data in BASINS– Land use/land coverLand use/land cover
Urbanized areas Urbanized areas
Populated place locations Populated place locations
Reach File, version 1 (RF1) and RF3 Alpha Reach File, version 1 (RF1) and RF3 Alpha StreamsStreams
Soils (STATSGO) Soils (STATSGO)
Elevation (Digital Elevation Models) Elevation (Digital Elevation Models)
Major roads Major roads
USGS hydrologic unit boundaries (accounting USGS hydrologic unit boundaries (accounting unit, cataloging unit) unit, cataloging unit)
Drinking water supply sites Drinking water supply sites
Dam sites Dam sites
EPA regional, state, and county boundaries EPA regional, state, and county boundaries
Federal and Indian Lands Federal and Indian Lands
EcoregionsEcoregions
Part V: Example ProjectsPart V: Example Projects Project StepsProject Steps
– 1. Specify Goals1. Specify Goals– 2. Obtain best 2. Obtain best
base maps possiblebase maps possible– 3. Acquire remote 3. Acquire remote
sensing imagery sensing imagery (e.g. aerial photos)(e.g. aerial photos)
– 4. Add your data4. Add your data– 5. Analyze the 5. Analyze the
data, manipulate data, manipulate the themes, add to the themes, add to or change the data. or change the data.
Site Characterization Site Characterization A. If a site needs A. If a site needs
to be ‘shown off’, to be ‘shown off’, GIS is a great GIS is a great way to do it. way to do it.
B. Aerial photos B. Aerial photos and line overlays and line overlays are an effective are an effective way of way of familiarizing familiarizing people with an people with an area (e.g. part of area (e.g. part of Buffalo County, Buffalo County, NE to the right)NE to the right)
Example: Fort Robinson, Example: Fort Robinson, NENE
Fort Robinson, NE is a Fort Robinson, NE is a historical site with historical site with over 100 years of over 100 years of active service. We active service. We are:are:– Trail mappingTrail mapping– Verifying boundariesVerifying boundaries– Possible future projects Possible future projects
include include Vegetation mappingVegetation mapping Game animal Game animal
managementmanagement Range quality use Range quality use
and management and management planningplanning
Aerial photo with roads and Aerial photo with roads and pointspoints
(copy and zoom in on this image – lots of detail!)(copy and zoom in on this image – lots of detail!)
Contours Overlaying Aerial Contours Overlaying Aerial PhotoPhoto
Aerial Aerial photo and photo and interpolateinterpolated surface d surface
from from contourscontours
Possible GIS ProjectsPossible GIS Projects 1. Endangered Species
Conservation– A. field research and literature search
to quantify the environmental requirements of a species
– B. Use GIS database to identify areas that fulfill all requirements (layers, queries, buffers) for the species
– C. Overlay known distributions of the species to identify areas under threat and to locate any uninhabited but candidate locations possible introduction of new populations
Dusky seaside sparrow (1987)
Thanks for viewing this presentation. If you Thanks for viewing this presentation. If you want to learn more about doing your own GIS want to learn more about doing your own GIS projects, and more capabilities of GIS please projects, and more capabilities of GIS please email me.email me.
Images in this presentation are from the ESRI website, the Images in this presentation are from the ESRI website, the Nebraska DNR, the Environmental Protection Agency, and the Nebraska DNR, the Environmental Protection Agency, and the U.S. Geological Service. Please visit their sites to learn more! U.S. Geological Service. Please visit their sites to learn more! Thanks. 11/99. Thanks. 11/99.