Jul 182011

Today we  had a Meeting with Mike Bailey, the Countryside Council For Wales (CCW) manager of the 2,300 Hectare Dyfi National Nature Reserve (NNR) that sits in the Western end of the Dyfi catchment. This NNR has areas of raised bog, sand dune and estuary within its boarders. Of particular interest for many of the projects at IGES is the raised bog area of the reserve which represents the largest area of such habitat in Wales.

Mike is helping out with several IGES projects ongoing on the raised bog. This is a valuable and fascinating habitat consisting of an area of raised peat sitting some three or four meters above the surrounding landscape. This removes much of the influence of underlying geology and watertable and leads to the development of unique and fragile habitats that have been much reduced in area and quality across Western Europe through peat digging in the past and present.

CCW is putting considerable time and money into the area with land purchase and habitat management aimed at restoring the fringes of the raised bog that have been degraded in the past by conversion to agricultural land and by peat cutting for fuel and horticultural use.

Mike is a case study for the project and is a provider of data that will be accessed by many users at IGES. He may also be able to benefit from students (postgraduates and undergraduates) adding value to some of his data with their own analysis.

The National Nature Reserve is surveyed and monitored in a variety of ways both for CCW and for postgraduate research. This has lead to the formation of a hotspot of data within the Dyfi catchment. Mike’s visit is particularly inspiring in the way he can help to visualise the geospatial data that we have collected . Understanding how records of species at particular x and y coordinates actually translate into understanding the health and nature of a very valuable and visually dramatic landscape really helps to bring this project alive.

The long term needs of ecological habitat management also emphasise the importance of long term data conservation. With some ecological management only showing its results over many years, the ability to safely conserve data and then to be able to rediscover it possibly a generation later will be a tough test for the best practice models for spatial data use and management this project aims to create.

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Jul 132011

A quick hello from your newest member (Steve Walsh) I now have my feet under the desk at Aberystwyth and look forward to working with you all. I will try and keep up regular blogs on developments….

I had a meeting with Jonathan Brownett yesterday and got some very useful insights into the use of spatial data from the coal face …….Below is a brief summary of Jonathan’s section of the project’s case study.

Jonathan Brownett – IGES MSc student 


 Jonathan is looking at land cover change in the Dyfi Catchment over an 8 year period using a mixture of data from LANDSAT 7 and field parcel data (LPIS) from the Welsh Government. He has also made use of the Digimap service to access OS MasterMap data and elevation and shape file data accessed from within from IGES. 

Jonathan is then relating this data to the relatively new Land Cover Classification System (LCCS) which uses pre defined classifiers that can be applied to a level of detail suitable for a particular project. With this method he should be able to track changes in 20 or so categories of vegetation, bare land and water covered areas. 

Combined with some confirmation of actual ground cover species Jonathan should then be able to describe some of the major land cover changes  that have happened in the Dyfi catchment (very similar in extent to the Dyfi Biosphere area). 

He is well underway with his work and should have his data analysed buy the end of July and should receive some expert help in using LCCS from Lucile who will be visiting the Department from France and will be bringing her expertise in carrying out LCCS ground survey to the Dyfi Biosphere area. 

Relevant experience for the IGIBS case study 

In several ways Jonathan is a very useful case study as he has recently come from a Conservation BSc and has experienced GIS and Remote Sensing courses and the functioning of an SDI in two academic departments. With his MSc thesis he is now   discovering the intricacies of accessing data from external agencies and discovering the wealth of data held by individual researchers with their own approaches to metadata creation. He is also being forward thinking and has suggested that some of his data might be suitable to use for undergraduate teaching so suggested that he will discuss the best way to make available the research data he has generated with his supervisors.

Apr 202011

Meeting with Mike Bailey (Senior Reserve Manager for the Dyfi National Nature Reserve) of the Countryside Council for Wales (CCW) to discuss the sampling of habitats across Borth Bog from the 26th April (for three days). Three areas were considered for sampling to support the BIO-SOS project. Datasets linked to Borth Bog were discussed and Mike will complete a data table with Becky.

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Apr 192011

For the Dyfi catchment, the main datasets acquired by satellite and airborne sensors have been collated and a description provided, including dates, with this undertaken to support, in part, biodiversity and land cover change projects being conducted through IGES. Satellite sensor data available include Indian Remote Sensing Satellite (IRS), SPOT High Resolution Geometric (HRG), Landsat and Terra-1 ASTER. Airborne datasets available include LiDAR, hyperspectral data and aerial photography. Hugh Evans from Forest Research also visited to discuss options for postgraduate dissertation work in the Dyfi Biosphere over the next few months.

Apr 182011

A number of datasets have now been identified and which may be put together within a centralised data store (where available). In particular, we have focused on the following:

a) Vegetation maps for the Dyfi catchment, within these including the Phase 1 Habitat Survey, the National Vegetation Classification (NVC), the Land Cover Map 1990 and 2000.
b) Soils datasets, including types.
c) Protected areas
d) Satellite sensor data, namely Landsat.

More datasets will be collated from other organisations and their accessibility to a range of users will be noted (e.g., students, academics, researchers, external). These datasets will, depending on permissions, be available to use within the project.

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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.

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Apr 162011

IGIBS is going to try (I say try advisedly, as this is a project) to create a tool to allow the semi-automatic creation of an OGC Web Map Service (WMS). This will allow users to publish their data for viewing in a variety of WMS clients, one of which will be a demonstration mapping application we create. This page will have a technical focus and will be used to report bugs, progress, planning, etc. The idea is that as the project matures, this is where we collect information on:

  • Recommendations for what is necessary to take the “WMS factory” tool
    into production (if its doable)
  • Suggestions for enhancements to the relevant components of the UK
    academic SDI
  • Suggestions for next steps to take the mapping application forward
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