The Fieldwork Education Resource Collection

Fieldwork Education Resources Collection

Fieldwork Education Resources Collection

The Fieldwork Education Resource Collection (FERC) brings together fieldwork education resources that are publicly available on the web to allow easy discovery, and to facilitate reuse in the GEES and wider HE community. Resources that relate to a specific location (e.g. a virtual field course) appear on the FERC Map, other more generic or skills based resources can be discovered through the free text search. The collection is primarily aimed at Higher Education but is available to anyone.

Resources are associated with one of three colour markers which provide an indication of restrictions (if any) to reuse or repurpose.

Examples of resources found in the FERC include virtual field courses, information on field sites, support and assessment material, BS8848 risk assessments, field skills and other good practice for the running of fieldwork.

We strongly advise in all cases, checking the licence or information on permitted use and/or reuse associated with any of the resources you wish to use and if unclear or not in accordance with your required uses, checking directly with the rights holder/s. Please note that we [THE UNIVERSITY OF PLYMOUTH, ITS PARTNERS, JISC AND THE HEA] cannot guarantee the copyright status of specific items. Use and reuse of all materials and other resources found in this collection is entirely at your own risk.

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Granularity

We’re making great progress uploading resources to our Open Fieldwork Aggregator, and with refining the search facility and licence information…more from Mike on this soon! An interesting issue has emerged concerning resources that focus on multiple locations, and how these are best represented on the map. For example, the Virtual Alps resource focuses on three field sites located in Switzerland, France, and Canada. Given the distance between these sites it seems reasonable link to the resource from each location – that is, to place three pins on the map each linking to the Virtual Alps website. So far, so straightforward. However, we have other resources covering multiple locations but on a much smaller scale, and herein lies our dilemma: at what scale does duplicating a single resource become unnecessary and/or unhelpful, and how can the geographic distribution of field sites be best represented?

This is best demonstrated in NW Scotland, which the map implies contains nine resources but in fact contains only two. The Rocks of NW Scotland resource covers a range of field sites featuring classic Scottish geology. Since this contains lots of useful information for field geologists we’ve duplicated the resource at several different locations. The advantage of this is that we can point people to the EXACT location referred to in a resource (in some cases the exact road-cut), the disadvantage being that the total number of resources located in NW Scotland is over-represented…the choice is in fact much more limited than implied by the map. In the same area we have a resource focused on the Moine Thrust Belt, which again covers several locations. This resource has been sub-divided by the author to focus on a northern and southern area, each with multiple sites within a realtively short distance (<10km) of each other. In this case we have chosen to represent the resource at two locations only, at the northern-most and southern-most parts of the respective field areas. So which of these approaches, if either, is the most helpful or appropriate? Should this even be an issue, if the focus of the aggregator is displaying the range of available resources, rather than the geographical distribution of field sites?

One further related issue we’re grappling with: assuming it is reasonable to duplicate resources at different geographical locations, should the markers all link to the home page for that resource, or directly to the location-specific information? There are pros and cons to both approaches, of course.

We’ll be exploring these issues further at our forthcoming expert seminar, but would be interested to hear anyone’s thoughts in the meantime.

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Useful model for OF database?

While trawling the internet for fieldwork resources I came across an interesting OER portal developed by Tecnologico de Monterrey.  There are only a couple of resources which are relevant to the OF project – most notably Worldmapper, which offers a very unique way of viewing the world! What I really like about this portal are certain elements of the design which strike me as good practice, and which could provide a useful model for the OF database.

I particularly like the way in which supporting information is presented (click on the Worldmapper link above for an example). This is done using three tabbed sheets focusing on 1) basic information (date of creation, keywords, type of resource), 2) authors and permitted uses of the resource (including the type of licence under which the resource is released, together with usage permissions and restrictions), and 3) learning context (e.g. academic level, teaching recommendations, and end-user benefits). This seems to be a logical sub-division of the key information, and could be easily adapted to include geographical information (possibly using an additional tab?) for location-specific resources.

Another important issue that we need to consider with the OF datadase is quality control: do we need it, what should it involve, who will be responsible, how will the quality of resources be a) determined and b) signified to the community? The approach taken by Temoa is to use their community to undertake elements of the quality control process. A resource is tagged according to the level of quality assurance that has taken place, and to indicate if it has been ‘adopted’, i.e. incorporated into learning activities. Finally, users have the opportunity to assign their own review, and to rate the resource according to its perceived value.

The quality control / user review issue is one that we need to discuss in much more detail, but Temoa seems to offer an interesting and potentially useful model. What I particularly like is the involvement of the user community and the potential to assign individuals, or groups of individuals, to specific roles or duties. Community engagement is vital to the sustainability of the OF database, and this seems a good means of achieving it.

What do others think? Are there other examples of good practice or useful models that we should be considering?

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The ambiguity of CC licences

Here’s an interesting situation which other OER users will probably recognise, but which appears to have no clear ‘answer’. Earlier today I was searching through an online database for fieldwork resources. I identified a likely contender, clicked the link, and was transferred to a second page with a link to the actual web-based fieldwork resource, together with links to further relevant information e.g. images, documents, further reading etc. At the bottom of this second page there was a CC BY-NC-SA logo. However, on following the link to the fieldwork resource, which can be freely accessed online, there was no CC logo / information to be found. So the question I asked myself was: is the actual fieldwork resource covered by the CC licence?

To anyone with experience of CC licences the answer is quite clearly ‘no’, but to the novice OER user the situation is far more ambiguous. With only a month’s experience I count myself in the latter category, and it took a lengthy discussion with Mike to clarify my understanding of what, exactly, the CC licence applies to, and how it should be interpreted in this particular situation. The next time that I encounter a CC licence on a page linking to a resource, I will know that the resource is not automatically covered by that licence. However, other (inexperienced) users may assume that the resource is covered, and use or re-purpose it inappropriately.

A phone call to a third colleague established that it was not technically ‘wrong’ to place a CC licence on the page linking to the resource, although we’re all intrigued as to the thinking behind licensing the page in the first place.

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Can OER go ‘out of date’?

Another interesting question has begun to emerge concerning the potential life span of a fieldwork OER. I’ve spent the past few days interrogating the Digital Library for Earth System Education (http://www.dlese.org) and come across some really intriguing and interesting fieldwork resources, many of which were created back in the late 1990s and early 2000s. This is not necessarily a problem in the sense that factual information and physical landscapes (excepting perhaps those relating to human or urban geography, or in areas prone to natural hazards) are unlikely to have changed that much over the past decade. However, many of the websites look dated by today’s standards; the photography or image quality is relatively poor, the interactivity is ‘basic’, and there are broken links a-plenty. Many also lack any indication of if and how the resource can be used or re-purposed. All this leads me to ponder the extent to which the potential usefulness of a resource really be judged. Say, for example, that we link to a dated and half-broken virtual field course. One person might find it highly valuable because it contains crucial information about access to a site, or the perfect photograph for a PowerPoint presentation, while someone else perceives the same resource to be of absolutely no value, and consequently does not bother consulting our database in the future.

My feeling at the moment is that we should continue to collate usable resources regardless of their age, but filter out those with a significant proportion of broken links or very limited information (another question: at what point does a text-based web-page with a few photos become a ‘virtual field trip’? Is it VFT just because the author says so??). It will be great to get some community input on this issue – what are the most important criteria for determining which resources have something genuinely useful to offer, and which ones are perhaps best left?

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What is a fieldwork OER?

One of my main tasks as Project Officer is to compile a database of fieldwork open resources already in existence. This involves trawling through OER repositories (e.g. JorumOpen), along with other “commons” and open/public sources trying to locate educational resources which could be re-used and shared within the GEES community (and beyond). An important question has emerged almost immediately: what, exactly, defines a ‘fieldwork OER’? Some are obvious, e.g. virtual field courses, field guides, and explanations or demonstrations of field techniques. Others are less clear, e.g. lab-based exercises which incorporate field data, identification guides for flora or fauna which might be encountered on fieldwork, or how to process GIS data collected in the field. This are all things which could feasibly, and usefully, support fieldwork, but are not specifically ‘field resources’.

Ultimately the usefulness of a particular resource will come down to the requirements of the individual, and the context in which it’s being used – neither of which we can (or should) second guess! The community consultation should help us out in this respect, by clarifying what resources GEES practitioners are most likely to search for, and why…..but any thoughts or comments on this posting will be gratefully received! In the meantime I’m thoroughly enjoying finding out what’s out there, and thinking about all the weird and wonderful ways in which some of these resources could be used in the GEES disciplines!

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Prototype open fieldwork map interface

We now have a test version of an open fieldwork map interface. At time of writing there is only 1 relevant record currently in the RSS feed we are using as a test base so you will only see one “pin” on the map. The record references fieldwork in Svalbard and has been correctly resolved and located on the map.

How does it work?

Using a list of Fieldwork related search terms the OF aggregator filters a JorumOpen RSS feed (just the physical sciences feed for now) for fieldwork resources and places these in a table in a database.

The descriptions from these resources are then put through the JISC EDINA Unlock geoparser using their open API. Unlock parses text for place names, resolves coordinates and returns ranked longitude and latitude if place name matches are found.

The top ranked pair of coordinates are recorded in the database against the resource and using the Google API the position of any relevant FW OER can be rendered as a pin on a map.

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Coming up with the right location

Thanks to Michael Knight for drawing my attention to http://mapeas.com/. From the mapeas page source code “…Mapeas is a mashup using Google Maps, Yahoo Pipes and various video news feeds.”

Some of the issues that we will have to deal with during the development of the Open Fieldwork map interface are evident with the current version of mapeas. Looking at the UK in mapeas reveals that many of the news items are misplaced US news items (e.g. at time of writing a news item placed in Northampton UK refers to a basket ball game held in a Northampton in the US). The US obviously has a lot of place names with a UK origin but the placement of items on the map maybe suggests that the original news item feeds do not include information on “country” or the filtering process is not resolving the right country. I notice that in mapeas each item has a “report as misplaced” link which is something I already have on the development list for the Open Fieldwork map interface.

How does the mapeas example help inform our geotagging guidelines for the community? What do we need to do to include in an OER repository record to ensure that subsequent geoparsing results in the OER being associated with the correct location on our map? Do we recommend that place name and country appear in certain fields or do we ask that coordinates or something like a geohash is placed in the description or keywords (e.g. http://geohash.org/gcr35t6tc71j6)? The latter would ensure that exaclty the right location is referenced. Relying on geoparsers is likely to be a little more hit and miss.

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Geotagging – Google Geocoding API

Google has a Geocoding program which is capable of taking string data and then converting it into long/lat co-ordinates.   We are all familiar with it – it is used to help people use Google Earth,  Google Maps and Google StreetView.

Detailed information about Googles Geocoding program can be found here:

http://code.google.com/apis/maps/documentation/javascript/v2/services.html#Geocoding_Direct

ICo3 have worked on  Google Geocoding for a variety of projects – everything from search engines  to estate agents websites.    We’ve put together the Google Geocoding API Integration for OpenFieldWork now at:

http://www.openfieldwork.org.uk/api/member_search.php?p=&search_text=sv

This takes a series of text phrases (variations of a sample title from JorumOpen) and determines from that whether Google’s Geocoding API returns a valid coordinate.

You can actually try the Google lookup directly by putting the following into your browser:

http://maps.google.com/maps/geo?q=Svalbard

This will return the data  in xml format.     To return just the coordinates you can also enter:

http://maps.google.com/maps/geo?q=Svalbard&output=csv

The above term returns the following xml:

{
“name”: “Svalbard”,
“Status”: {
“code”: 200,
“request”: “geocode”
},
“Placemark”: [ {
"id": "p1",
"address": "Svalbard and Jan Mayen",
"AddressDetails": {
"Accuracy" : 1,
"Country" : {
"CountryName" : "Svalbard and Jan Mayen",
"CountryNameCode" : "SJ"
}
},
"ExtendedData": {
"LatLonBox": {
"north": 84.3767980,
"south": 62.7791490,
"east": 89.2366798,
"west": -41.8961358
}
},
"Point": {
"coordinates": [ 23.6702720, 77.5536040, 0 ]
}
} ]
}

We can then use those coordinates to place the returned string on a Google map – as can be seen in our example  page:

http://www.openfieldwork.org.uk/api/member_search.php?p=&search_text=Sv&t=n

At the moment we have identified that this search will only return co-ordinates if the search finds all the phrases in the search – rogue words result in a failure. Some searches will also return business names and map them accordingly and that could produce some strange results if they hit.

There would a a solution and that would be to try all the words in the search phrase and attempt to map them. This will effectively do the following:

The Cryosphere : Svalbard Virtual fieldclass

Search The: 0,0
Search Cryosphere: 0,0
Search Svalbard: 23.6702720, 77.5536040
Search Virtual: 0,0
Search fieldclass: 0,0

In this way the program will do five searches and identify the Svalbard word as the correct code.

Taking a large range of characters it would be possible to split up and then count words used in a article – and from that identify the most common words found. Then sort those words and lookup location data for each of them.

For the next entry I will look at a range of examples where the Google Geocoding API has been used to scrape data and look for ways to extract further location specific data.

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Location information in OER metadata (part 2)

In exploring how we could dynamically position links to fieldwork OER on a map, based on the location where the fieldwork takes place, one approach might be to resolve a position from the resource description or text in the resource. The OF project tried out the EDINA Unlock service – it looks like it could be very useful.

The JISC EDINA “Unlock” text geo-parser (http://unlock.edina.ac.uk/text.html) can identify place names within text content e.g. text or HTML. The geo-parser can also make a “best guess” at the location and return a latitude and longitude (as WGS 1984 Web Mercator coordinate system – the web map service (WMS) standard).

As a quick experiment I gave the geoparser the HTML of a JorumOpen record for “Svalbard Virtual fieldclass” (http://open.jorum.ac.uk/xmlui/handle/123456789/11273?show=full). This record does not contain any coordinates but resulted in the 1st ranked result in the XML output(pdf) coming up as Svalbard (correct answer) and returned coordinates for that location. Just to check where that appears on a map I stuck the associated coordinates into OpenStreetMap: http://www.openstreetmap.org/?lat=78.15706&lon=15.86426&zoom=4.

A possible source for error could have been references in the JorumOpen record to the HE instituion where the OER was authored i.e. “University of Exeter”. That said “Exeter” did not feature in the XML output which, for the purposes of this project, is fine.

It will be interesting to compare this with the location resolving powers of the GoogleMaps API (see location information in OER metadata).

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