Tag: data collection

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Bucknell/Local Interest Data Digital Humanities Environment General GIS GIS in Biology GIS in Computer Science GIS in Engineering GIS in Environmental Studies GIS in Geography GIS in Geology GIS in History GIS in Humanities GIS in Psychology GIS in Sociology Map Apps Marcellus Shale Miller Run Restoration Project Slideshow

What we’re up to this summer (and why we’re not posting)

Thanks to the Mellon grant and a huge number of faculty teaching and research projects it’s been a very busy summer of GIS work at Bucknell.  Over the coming weeks I’ll write detailed posts about the work we’re doing on each of the projects.  If I’m really ambitious I might try to post some interviews with faculty and students – and some footage of the aerial drone flights that Nick Urban ’12 is doing. But for now here’s a short overview of who’s doing GIS work at Bucknell this summer and what we’re doing:

GIS Student Assistants:

  • Chad Lawlis, Environmental Studies ’11
  • Dan Dougherty, Geography/History ’12
  • Max Stiss, Geography/Anthropology ’12
  • Nick Urban, Computer Science ’12
  • Mike Grasso, Environmental Studies ’13
  • Robby Holler, Geography/International Relations ’13 (pictured below)
  • Darin Rockwell, Geography/Geology ’13 (pictured below)
  • Dan Ladd, Middlebury College ’14 (pictured below)

Key Projects:

  • Maps for Sudan field guide atlas to mammals
  • GPS data collection for Lewisburg Cemetary
  • GPS data collection for Miller Run restoration project
  • Aerial drone data collection for Miller Run restoration project
  • Lycoming County/Williamsport community asset mapping
  • Mapping toxic contamination from Marcellus Shale natural gas wells
  • Mapping locations of Marcellus Shale water withdrawl permits
  • Georeferencing & vectorizing 19th century economic maps of Vietnam
  • Georeferencing & vectorizing maps of environmental hazards and resources in Kyrgyzstan
  • Georeferencing & vectorizing 1868 Historic Atlas of Union & Snyder Counties
  • Data development for Stories of the Susquehanna project
  • Support for student research projects – including GPS’ing dumpster locations on campus for an analysis of campus waste and recycling, and updating Arboretum tree dataset with location info for newly planted and felled trees
  • Develop pilot web map apps for showcasing faculty research
  • Develop pilot web map apps for use in teaching
  • Implement backend IT infrastructure to support ArcGIS server
  • Maps for Bucknell admin purposes, including: analysis of parking shortages on campus; maps for task force report on campus climate; maps for SBDC report on services by county; arts festival map.

 

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General GIS GIS in Computer Science Slideshow

GPS vs. Smartphone positional accuracy

Joseph Kerski, part of Esri’s education team had some interesting blog posts last week comparing the accuracy of GPS units to his smartphone and implications that might have for using the SmartPhone for academic purposes

Recently I wrote about techniques to use photographs taken on a SmartPhone as hyperlinks to locations where you have collected field data using ArcGIS Online as your mapping platform. These photographs are geotagged with a latitude-longitude coordinate recorded at the time and location that the photograph is taken. But how accurate are those coordinates, and how do they compare to the accuracy of locations recorded by a GPS receiver? In other words, do I really need my GPS receiver any longer, since modern SmartPhones can capture positions using an embedded GPS chip and even supplement the GPS position by triangulating off cell phone towers?

Click here for part 1 of the blog post.

Click here for part 2 of the blog post.

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General GIS GIS in Computer Science Map Apps Slideshow Videos

Your iPhone is Tracking You

O’Reilly Media published a story yesterday (on the penultimate day of its Where2.0 conference no less…)  describing Alasdair Allan and Pete Warden’s discovery of a hidden file on your iPhone and 3G iPad that keeps a running record of your device’s whereabouts. The file, part of the iOS4 release, records both latitude/longitude and timestamps – making it possible to create a detailed map of any and all movements you’ve made while having the iPhone or 3G iPad on your person.

There is a debate underway about both the significance of this finding as well as how new a ”discovery’ it is  (see links below). But I’m kinda on the same page as Alexis Madrigal from the Atlantic – as much as I’m a little disturbed by the idea of a secret log of my whereabouts, I’m also fascinated by the idea of playing around with the data my iPhone has recorded and I’m curious to see what kinds of visualizations could be created out of it. If you’re curious about this too, you can visit Pete Warden’s website to download a free, open source app that will map the data from your iPhone or iPad tracking file.  See below for some sample ‘heat maps’ that were created using the tracking data from various user’s iPhones. Click here to see a video from Pete Warden’s website showing animation of tracking data from Warden’s iphone mapped by location and timestamp.

Story from O’Reilly Media:
Got an iPhone or 3G iPad? Apple is recording your moves

Story from Alex Levinson’s Blog:
Three Major Issues with the Latest iPhone ‘Discovery’

Story from The Atlantic:
My Life According To The iPhone’s Secret Tracking Log

Story from Gizmodo:
iSpy Conspiracy: Your iPhone is Secretly Tracking Everywhere You’ve Been, All the Time

Story from zdnet.com
Your iPhone is Tracking You (And Has Been for Awhile)

Two O’Reilly media researchers, Alasdair Allan and Pete Warden, caused quite a stir yesterday when they published an article about a hidden file in iOS 4 that regularly records the position of your device. All iPhones running iOS 4.0 or later log your location to a file called “consolidated.db” (a plain SQL file) which contains latitude-longitude coordinates and a timestamp.

Story from The Guardian:
iPhone Tracking Prompts Privacy Fears

Security researchers have discovered that Apple‘s iPhone keeps track of where you go – and saves every detail of it to a secret file on the device which is then copied to the owner’s computer when the two are synchronised. The file contains the latitude and longitude of the phone’s recorded coordinates along with a timestamp, meaning that anyone who stole the phone or the computer could discover details about the owner’s movements using a simple program.For some phones, there could be almost a year’s worth of data stored, as the recording of data seems to have started with Apple’s iOS 4 update to the phone’s operating system, released in June 2010.

YouTube Video of Pete Warden and Alastair Allan discussing the iPhone tracker at Where2.0:

httpv://www.youtube.com/watch?v=GynEFV4hsA0&p=0B2FEB8AACD826BE

Sample ‘heat map’ of Alexis Madrigal’s movements (created from data in the iPhone tracker file):

 

Sample ‘heat map’ from Sam Biddle’s iPhone:

 

Categories
Bucknell/Local Interest Data GIS in Engineering GIS in Environmental Studies GIS in Geology Slideshow

GIS in education – EPA grant and campus mapping

Notes on two interesting stories about GIS in education. Thanks to Adena Schutzberg’s All Points Blog for the heads up about the stories.

1. Texas State University’s Center for GIScience was recently awarded 500K grant from EPA to use GIS for modelling/mapping air pollution-exposure-health effects:
The U.S. Environmental Protection Agency’s Science to Achieve Results (USEPA-STAR) program has awarded a grant of nearly $500,000 to The Texas Center for Geographic Information Science in the Department of Geography at Texas State.

The grant will support a project entitled “Air Pollution-Exposure-Health Effects Indicators: Mining Massive Geographically Referenced Environmental Health Data to Identify Risk Factors for Birth Defects.”The three-year project will develop air pollution exposure assessment methods, visual geospatial data mining tools, and epidemiological analysis procedures to define new air pollution-exposure-health effect indicators that cover three components of the hazards-exposure-health effects-intervention paradigm.

– San Marcos Local News

Click here to see more EPA STAR Research Grant Announcements.  The EPA STAR grants are just one of the types of research grants available through the US EPA National Center for Environmental Research.   Click here for an overview of the Center’s research and fellowship opportunities.  Check the Bucknell GIS Calendar (featured on the main page of the GIS blog) this fall for deadlines for student grant applications for the EPA GRO fellowships – awarded each year to undergraduate students in environmentally related fields of study.  From the EPA Fellowships web page:

Eligible students will receive support for their junior and senior years of undergraduate study and for an internship at an EPA facility during the summer between their junior and senior years. The fellowship provides up to $19,700 per year of academic support and up to $9,500 of internship support for the three-month summer period, for a total of up to $48,900 for the two year period.

2.   Grad students at Utah State University are collecting high resolution imagery of their campus using a small blimp.

Soaring above the Quad on Tuesday afternoon, a white blimp controlled by Utah State University graduate students was almost hard to spot against the Cache Valley’s overcast sky.The only object that was clearly visible was a black digital camera, snapping one picture every five seconds, providing color georeferenced aerial photography of the entire Quad in UTM (metric) coordinates.

The students were conducting a lab by running a blimp survey for Joseph M. Wheaton’s geographic information systems class. The objective: To provide aerial imagery of the entire Quad. The 1,000-plus pictures the blimp provides them with will be used to make an image that can fit “on top of” the images on Google map, said Bryan Watt, a USU graduate student in the class.

– Herald Journal

Could we do this at Bucknell? Twice in the last month I’ve had faculty (half-jokingly) suggest that we rent a plane to do a data collection fly-over of Lewisburg. Forget the plane, let’s figure out how to get our hands on a blimp!