exeGesIS Spatial Data Management

 

Posts in Category: Data analysis

Morfa Friog Coastal Realignment Project saltmarsh vegetation monitoring

Client: Natural Resources Wales

Morfa Friog saltmarsh monitoringExegesis was contracted to establish vegetation monitoring at a saltmarsh coastal realignment site. This required the collection of high resolution aerial imagery, quadrat based vegetation survey, mapping in GIS and production of a detailed report.

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Wood-pasture and parkland data analysis

Client: Natural England

The saproxylic beetle Trypodendron signatum. © Mike Lush, 2016We demonstrated through spatial processing and statistical analysis that it may be possible to predict wood pasture and parkland quality. This project generated a model that could be used to target survey effort to those sites with the highest predicted quality.

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Common cord-grass Spartina anglica and its management in estuarine Natura 2000 sites

Client: Natural England

Spartina anglica in Natura 2000 sitesExegesis were contracted to undertake a review of Spartina anglica in England’s Natura 2000 Sites. This covered its impacts on designated features, effects on accretion and erosion, distribution and extent, and a review of control techniques. A protocol was developed to monitor S. anglica and help identify any negative impact.

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Understanding the impact of invasive non-native species on protected sites

Client: Natural England

Invasive non-native species on protected sitesexeGesIS were contracted to investigate the distribution of non-native species on protected sites in England, to help develop a programme of work to tackle Invasive Non-Native Species. Large scale data analysis was used to determine which protected site each species occurred within. We also reviewed data flow within Natural England.

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Development of Fishing Effort Toolkit

Client: Cefas

Fishing Effort Map - TrawlingexeGesIS SDM undertook two projects for Cefas to create and update a bespoke Fishing Effort Toolkit that allowed end users to process raw GPS tracks and sighting data and undertake a standardised process to calculate fishing effort for one or more years.
 

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Volumetric analysis using a mini-plane DSM

Client: Natural Resources Wales

Volumetric analysis using a mini-plane DSMexeGesIS undertook an aerial survey of a site and orthorectified and mosaicked the imagery to create a single image. We also generate a digital surface model, which was compared against lidar data to give the change in height. We then determined the volume of additional material within patches identified from the aerial photography.

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Definition and mapping of open mosaic habitats on previously developed land: phase 2 testing methods and developing the habitat inventory

Client: Defra

The hoverfly Xylota sylvarumWe identified the key features and enhanced knowledge of the distribution of UK BAP Open Mosaic Habitats on Previously Developed Land. This involved the development of a survey methodology and a survey of 98 sites to identify OMH habitat, including a survey of invertebrates on 50 - the largest single survey of its kind in the UK.

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Mapping Green Infrastructure delivery

Client: Natural England

exeGesIS collated maps of Green Infrastructure (GI) delivery and captured the information. Areas of UK priority habitats and other GI were separately mapped and attributed. In total, 753 cases were mapped amounting to 3,485 polygons (21,342 ha).
 

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Distribution of fisheries habitats

Client: Countryside Council for Wales (now Natural Resources Wales)

Map of fishing activity within protected marine sitesexeGesIS SDM created a set of MapBasic tools to analyse the distribution of fisheries habitats and fishing activity relative to Special Areas of Conservation (SAC) and SAC Features.

 

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Wales Coast Path Condition Survey

Client: Natural Resources Wales / Cyfoeth Naturiol Cymru

Wales Coast Path LogoexeGesIS and Natural Resources Wales (NRW) undertook a 1,200 km survey of the Wales Coast Path prior to its opening. This was used to establish a baseline for the condition of the path and provide a resource for those responsible for its management. exeGesIS worked with NRW to establish the methodology for the survey.

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