Jul 202011

Alisdair is a PhD case study for the IGIBS project. He is 8 months into a PhD that is developing a tool to interpret almost ant kind of imagery into part of a time line for mapping habitat change.  You can view his university profile here.  He says that the key descriptors for this work are  “universal” and “precise”. So he is aiming create a tool that can be applied to images from Landsat , IRS  and SPOT for example and from these data  he is trying to draw out both changes in extent of habitats since 1975 and in timings of changes within a season. So he might be able to look at loss of semi-natural woodland through felling  and to identify changes in the timings of tree bud burst that might relate to climate change. 

In order to make  data created at different times precisely comparable he needs to perform some complex processing of imagery and to  filter out variable factors that distort the images, such as atmospheric quality.  This means that his data requirements for the PhD are very wide ranging and have covered satellite and aerial data from the past 35 years detailing ground cover, atmospheric quality  and many things in between. 

There are also issues around the accessibility of data that will be worth exploring for the IGIBS project as some of his source data is commercially protected but much of his output and analysis might be  more freely available. So some data will only be  for University use while other parts of his work will be more accessible.  

While the ultimate aim is to provide change maps for the whole of Wales, the pilot study is covering Borth Bog (Cors Fochno in Welsh) in the Dyfi Biosphere and so will provide a suitable case study for IGIBS. 

In particular this case study will highlight some major areas of the IGIBS project.

  1. His need for such a wide range of geospatial data  from differing  sources could  feed into recommendations for metadata and data discovery aspects as well as security issues and intellectual property rights.
  2. He will be producing maps of habitat change that could be useful to landscape researchers, WAG agencies, and many other categories of data users and so he is attempting to   establish a link with the National Library of Wales so that his research can establish a  resource for future use.
 Posted by at 11:59 phd, User Reqs Tagged with: , , , , , , ,  Comments Off on Alisdair Cunningham – IGES PhD student
Jul 072011

Within IGES, key people representing users (undergraduates, postgraduates, research staff and academics, external users) have been identified as ‘case studies’ to support the IGIBS and demonstrate the beneifts for teaching and research.

Within IGEs, undergraduate students have access to a wide range of modules.    This project will focus on the Dissertation module and also the third year modules “Geographical Information Systems” and “Earth Observation from Aircraft and Satellite”.   New material is being developed revolving around these latter two modules which will also utilise web-based mapping and the datasets made available for the Dyfi Biosphere.  The opportunities for undertaking dissertation work within the catchment will also be promoted to students as suprisingly (and for the first time in many years) none from IGES focus on the Dyfi.   However, we are talking to dissertation students in other Departments to seek their involvement.

Aberystwyth University has recently launched a suite of five new Masters Courses focusing on remote sensing and GIS, Geography, Planetary Exploration, the Living Environment and Computer Science.  The material collated for the Dyfi catchment will be playing a key role in these courses, with the content of modules also conveying techniques developed in IGIBS.   As a case study, Jonathan Brownnet (a current student on the Masters course Remote Sensing and GIS) is investigating the use of multi-temporal remote sensing data for quantifying forest change in the Dyfi catchment and its likely impact on hydrological dynamics.   His work is being followed as part of IGIBS. 

At the Ph.D. level, Alisdair Cunningham is working also on methods of change detection from remote sensing data and he will be providing datasets for the project which will be made available to students and staff within IGES.  Becky Charnock is also commencing a Ph.D. in September on examining whether changes observed from remote sensing can be related to losses or gains of floral and faunal diversity.   Becky previously worked on IGIBS and will continue to contribute.

Our Map Librarian staff, Antony Smith and Ian Gulley, are also helping to make the IGIBS a success.  In February, IGES launched its new digital map library which is providing students with opportunities to explore geographical datasets delivered over the web and to input their own.   A key component is to utilise the Map Library facilities such that the datasets acquired for the Dyfi are full available to the range of users.

We are also linking with external research organisations including Forest Research (Dr. Hugh Evans), the Countryside Council for Wales (CCW), EcologyMatters and the Welsh Government and helping to support a wide range of initiatives.   The project is also linking with the NERC Virtual Observatory project being undertaken at Aberystwyth University that also focuses on the Dyfi Biosphere.   There are also strong connections with the BIOSOS project through myself.   This project is focusing on using remote sensing data to characterise and monitor Natura 2000 sites, of which Cors Fochno (Borth Bog) is one.   A component of the project is to collect new datasets over the summer period which will be fed into IGIBS.

Steve Walsh is working to ensure the success of the project over the next four months and will be putting up blogs on a near daily basis so stay tuned for updates.

 Posted by at 10:34 Project Management, User Reqs Tagged with: , , , , , , , ,  Comments Off on Users of IGIBS: An update
May 162011

An important part of the data collation for this project is to make sure we know what level of access is allocated to the data. For example some data sets will have sensitive data which would not be for general viewing whilst others will be available to most and students will be able to use it for their research.

We have recently received data set lists from Paul Brewer at IGES and Colin Chapman at WAG. Paul Brewer has given us a list of hydrology data sets as well as LiDAR data and aerial photography for the Dyfi catchment that would be available for all students and academics to access. Some of these data sets have been noted by Jonathan Brownett, MSc student who would like these to help with his thesis research. We have also acquired a list of data that WAG may be able provide. These may contain sensitive data and will have user restrictions. Both Paul Brewer and Colin Chapman should have other data lists available to us at a later date.

 Posted by at 12:14 msc, phd, undergraduate, User Reqs Tagged with: , , , , , , , , , ,  Comments Off on Access to data.
May 132011

Today I met with Jonathan Brownett an MSc student studying at IGES who is hoping to complete a thesis which will investigate land cover change over the Dyfi catchment area using remote sensing. He will use this method to determine the effects of land cover change on the hydrology of the area.

He would find this project very useful in compiling his thesis and already from the list we have compiled he has highlighted a number of data sets that he would like to have access to, to help him complete his thesis. So far there are at least 10 data sets that we have collated that will be useful to him.

After this I made a trip to Ynyslas where the Dyfi Reserve Manager Mike Bailey from CCW was able to locate a number of useful vegetation data sets initially taken from quadrats within the Cors Fochno bog area of the Dyfi Biosphere. This data will be of use to Professor Richard Lucas, academic from IGES and Alisdair Cuningham, PhD student who will be able to use this data for the BIOSOS project which they are working on.

I also received a list of IGES undergraduate proposed thesis titles and so far none of these are focusing on the Dyfi Biosphere. The Dyfi Biosphere is an area which could prove to be a huge resource to such students in terms of research already carried out in this area and the boundless possibilities it poses for more research. The proposed tool/mapping application could be used as a valuable tool for educating these students allowing them to discover the resources it holds.

May 092011

In the last couple of days I have met with a number of people who have previously or are currently working on projects within the Dyfi Biosphere. I have asked what data sets they have available and what their requirements of this tool would be.

I have met with Anthony Smith, the map curator in IGES. He agrees that the IGIBS data and tool would be very useful for both students and staff. The data acquired would also add to and help to update the map library. It also seems that many data sets relating to maps within the library are actually held among various researchers within the department. This currently makes it difficult for anyone to locate data sets relating to catalogued maps. The use of Geodoc for metadata recording and management might improve this situation but ultimately the Dyfi Biosphere and IGIBS mapping application would make all the information available in one site.

Alisdair Cunningham is a PhD student and is studying and developing methods for detecting habitat and land-use change in Wales using remote sensing. He will be concentrating his research on the Dyfi Biosphere area. He has many data sets available for the use of this project which have now been collated and stored safely along with other lists of data we are accumulating. Alisdair has said the proposed IGIBS tool and mapping application would be very useful for his research as it would draw together data sets compiled by other researchers. It could also act as a place to store his data sets so that they are easy to access, view, and compare. He would particularly like to use the LiDAR data from the Dyfi Biosphere.

In the process of collating the data sets for this project we have acquired LiDAR data of the area from a Dr. Angela Harris who is a lecturer at Manchester University and has been researching the use of remote sensing in monitoring northern peatland hydrology. She has also provided hyperspectral data and aerial photographs which will be very useful for Professor Richard Lucas who is working on a BIOSOS project in the Dyfi Bioshere and again for Alisdair Cunningham’s PhD research.

Already this project is linking people and their data sets with each other and should eventually prove to be a valuable and expanding resource to all researching and learning about the Dyfi Biosphere.

Apr 182011

Information is now being collated on available data sets to incorporate in this project. We have identified a number of case study users from the Institute of Geography and Earth Sciences (IGES), Aberystwyth University and Forest Research in Wales, Forestry Commission who have previously and are currently working on projects based in the Dyfi Biosphere.

As part of the process for gathering this information users are being actively encouraged to create dataset metadata using GeoDoc tool – found within the GoGeo area on the EDINA web site. This utility is used to create standards compliant dataset metadata for upload into catalogues, eg, GoGeo! so that the data can be discovered, evaluated and possibly reused. Note that you need to have UK Access Management credentials to use GeoDoc.

Users that we have identified so far consist of academics, researchers and students within IGES in Aberystwyth University, and from the Centre for Catchment and Coastal Research (CCCR) which is a consortium of Aberystwyth University and Bangor University. Users will also include researchers from Forestry Research in Wales, Forestry Commission and staff from the Countryside Council for Wales (CCW). Within these bodies individuals have been identified and we will develop these as user case studies. We are currently collating their data sets and identifying their relevant uses and needs.

In the following weeks we will collate and input data sets some of which are complete whilst others are work in progress. These data sets will come from the individual user case studies. The user case studies will be something like the following:
• IGES Academic/Researcher
• IGES/CCCR Academic/Researcher
• IGES MSc Student
• IGES PhD Student
• IGES Digital Map Librarian
• Forestry Research Researcher
• CCW Senior Reserve Warden for Dyfi Biosphere Area

A ‘shopping list’ of data sets that are either not currently available to these users (and which they would like access to) or are difficult to find will also be identified and collated. Already we have had requests for biogeochemical data sets from IGES/CCCR, and for remote sensing data sets from Forest Research. It is hoped that Welsh Assembly Government may be able to help with some of these data and that, even if their use is restricted, we may be able to offer access to using web services secured using Shibboleth (the software underlying the UK Access Management Federation).

So far we have identified from the academic/researcher evidence that both academic staff and students would find the Web Map Service (WMS) “factory” application useful as a research and teaching tool. It has also been suggested by one of the academic users that an undergraduate module could be developed around the use of open geospatial standards. It was agreed that using the GeoDoc metadata input facility would generally improve data management practice for research projects.

Any comments from the user case study individuals or other potential users would be much appreciated to ensure the relevant uses and needs of all involved in this project are identified. The information will feed into the development of the mapping application and the identification of future requirements.

 Posted by at 15:05 User Reqs Tagged with: , , , , , , , , , , , , , , , , ,  Comments Off on Collation of data sets