GISCorps Volunteer Mentors/Advises in a Project in Hunza Valley in Northern Pakistan
By Miguel Garriga, Geographic Systems, LLC, GISCorps Volunteer
I originally joined GIS Corps in 2004, shortly after finding out more about the group at the ESRI Conference. I had just started my own consulting business, and the GISCorps seemed like a great opportunity to give back to the GIS and world community.
My first opportunity to work with GISCorps came in September 2005, though not as I had hoped. Katrina had hit, and EOCs in the strike zone were asking for volunteers. I had contractual obligations and was not able to take time off until three weeks after the hurricane. By this time, the EOCs were no longer asking GISCorps for volunteers. I was disappointed I was not able to contribute, but glad the EOCs got the help they needed when they needed it.
Finally, in May 2007 I got an email from Shoreh Elhami of GISCorps, saying I was shortlisted to help on a Cultural GIS project in the Hunza Valley in Northern Pakistan, mapping historical sites. They needed a volunteer to act as a mentor or advisor to another volunteer who would be working in the field. I would not need to travel, just provide technical support by email as needed. It sounded like a great opportunity. I had the skills they were looking for: training experience with ArcGIS and Geodatabase design, familiarity using CAD data with GIS, and knowledge of projections and Georeferencing.
To kick off the project, Shoreh sent me background emails from Bernadette Baird-Zars, the volunteer who would be doing the work in Pakistan over the next 3-4 weeks. This was followed by a Skype conference call between myself, Bernadette and Shoreh to discuss the project and make sure we were all on the same page. Bernadette had a lot of hands on experience using ArcGIS with shapefiles, but not much experience with Geodatabases.
Based on the user needs, as described in emails from Bernadette, I made a couple of suggestions about how the Geodatabase could be used to facilitate data collection. Creating Domains of valid values for a field would restrict data entry to just those values, ensuring data consistency and helping reduce errors in data entry. Subtypes would allow storing similar complementary features inside the same layer, with a single item to distinguish them, and the added benefit of automatically setting default values for fields based on subtypes.
Bernadette forwarded me an email with a preliminary database design from the client. Looking at this preliminary database design, even though it was for a non-spatial database, certain things popped out as logical candidates for subtypes and domains. I helped Bernadette with specific questions she had – questions about linking tables and working with normalized and de-normalized databases with GIS. We identified base map sources for Northern Pakistan, and talked about ESRI recommended hardware specifications and platforms. I advised Bernadette on how to create Geodatabases from scratch, and how to convert shapefiles and CAD files to Geodatabases.
Once Bernadette got to Pakistan, the project started to take shape and things moved more quickly. Bernadette’s questions were now very specific, and I answered her questions as best I could on everything from layer organization, to projections and georeferencing CAD files, to loading and working with non-spatial tables.
When I next heard from Bernadette a week later, the project was well underway. The emails I got were more like status reports, with fewer questions. She sent me a layout of the Geodatabase design and layer organization, a hierarchy for uniquely identifying every cultural feature by location and type, and finally, finished maps showing the location of cultural sites in the villages of Northern Pakistan.
In terms of time, my commitment to the project was probably less than 20 hours over a four week period – a small commitment from me, but of great benefit to Bernadette in the field and the project overall. Our primary form of communication was email. There were about three one-hour Skype calls, at the beginning, middle, and end of the project.
Best of all, I was able to fit this in to my normal work schedule. I could answer most of Bernadette’s questions at the end of my work day (and due to the time difference, the beginning of hers). From my perspective, it was a great experience because I was able to support someone in the field with information that was immediately put into practice. Although I could not take the time off work to go to Pakistan, I feel I was able to contribute in a meaningful way. It was great fun, and I look forward to doing it again.
Pakistan Project – Thank You Note
By Bernadette Baird-Zars
As a Fulbright student associated with the Aga Khan Trust for Culture in Syria, I was asked to assist an AKTC sister project in Pakistan with mapping. We were charged with making a geodatabase for cultural heritage inventory data gathered on over 500 sites and dozens of small historic villages, as part of a larger initiative to document and promote local culture in the Northern Areas of Pakistan. The local team – almost all young women from the village in the Hunza Valley – had worked very hard and amassed a rich and interesting amount of data, including CAD and total station surveys of historic settlements, household surveys of residents and their home structures in tabular format, and the inventory in Microsoft word format.
Throughout the process, the guidance and support provided by GISCorps was wonderful. Initial conversations with Shoreh Elhami shed light on the spectrum of similar projects, and the possible outputs most appropriate for publicizing the data. Nestled in the high Karakorum mountains, the physical landscape of the area is unmatchable and well-recognized, but the area also has a unique cultural heritage that is very little-known or visited, and one that the project hopes to make public for the local and international community soon. Once the geodatabase compilation is finished for the whole region (we finished the design and compiled one valley during my time there), it will likely be put on Google Earth as a layer, as well as having a CD-rom output that is more accessible for local users.
Miguel Garriga, the volunteer assigned to the project, must have answered hundreds of questions over the roughly month-long period of design and implementation, and did so with patience, timeliness, and detail. While remote assistance perhaps may not be a traditional volunteer approach, I can report from the field that it was immensely helpful and appreciated. Especially in remote locations, this application of GIS corps can be a great way to catalyze and give confidence to local capacity. From my perspective as a mildly-qualified GIS user, the ability to have access to a knowledgeable mentor to ask technical and theoretical questions of was truly invaluable.
Thank you GISCorps!