Gloucestershire and West Lothian Aerial Archaeology


Formerly The West Lothian Archaeological Trust and Stroud Aerial Archaeology

In the late spring of 2021 our Facebook pages were deleted and our activities no longer posted routinely online.

John Wells

 
Radiation Biophysicist



Kite Aerial Photographer



trou



Publications

Armadale (Scotland) & Stroud (England)


docjohnwells gmail.com


Primary Interests




John and the late Rosie Wells are the yellow dots (Cairnpapple 2011)



Visual Aids for the Partially Sighted



Photomicroscopy and Macro Photography

(Near UV to Near IR ~300 - 900nm+ and fluorescence triggered by wavelengths from ~185nm)




Photography (Near UV to Thermal IR)



I have been interested in photography since the 1950s. At around the age of eight, I remember contact printing negatives without chemicals using a day-long exposure to sunlight. In the 1960s and early 70s (working with fully manual cameras) I enjoyed capturing night scenes, one of which won a national competition. The prize was an auto-exposure SLR, a technology that was not overly helpful for long exposures due to reciprocity failure. Wet streets following rainfall were often a key ingredient of the nightscapes, a consideration that would reappear for thermally imaging archaeological residues over 40 years later.















Kite aerial thermal infrared selfie with a dog published in 2011




My training and profession have involved a range of image gathering techniques ( X-ray crystallography, photomicroscopy, corona discharge photography and autoradiography etc). Geophysical methods of archaeological investigation often involve logging soil resistance or magnetic data points, one at a time, which are used to form an array of 'pixels', which is then refined through appropriate processing to form an image. Both within and outwith the visible spectrum, imaging is mass data point collection and should be performed under optimal conditions (for the technique and site of choice) and the resulting images processed to extract the maximum amount of inherent information. Standard photographic visualisation is only a starting point.











  Our Register of Kite Aerial Photographers and Kite Remote Sensing Specialists




Cairnpapple 2009



West Lothian Archaeological Trust 2012-2019 Archive


Rathrar, Rathbarna Quadrivalleted Enclosure Complex, Co. Roscommon, by SNAPS recipient Christy Lawless.


Our Scottish National Aerial Photography Scheme (SNAPS - UK & Ireland) 2013-2016 Archive




Helicopter aerial photo over Bussage village

Family outing in a helicopter over our village, Bussage, Gloucestershire, in the 1980s.


Chichen Itza, another aerial image before we did kite aerial photography.

(Note the nostalgic scratch from the days of film)



Archeoscan Excavation of a Roman building at Nesley Farm, Gloucestershire, in 2011.

John is on the right and Rosie is out of shot flying the kite.

(click on image for larger version)


How We Started Doing Kite Aerial Photography


2006 - 2012



A section from one of seven West Lothian Council display boards on our work.


2012





West Lothian Aerial Archaeology


West Lothian Aerial Archaeology Archive 2007-2018


with Cade Wells

Left to Right - Rosie, Cade and John Wells, Jim Knowles and Heidi (Wells) Walker on Cairnpapple.

Jim was the only qualified archaeologist in the group. He also has an MSc in computing.

2012



Prehistoric double-ditched enclosure at Winchburgh by Jim Knowles

2013



Kinneil Roman fortlet with excavation features on the extreme right (North) from ~30 year before.

An inverted, near infrared kite aerial photo captured in wind-free conditions.

2011



Peace Knowe hillfort viewed from the northern side.

2010



Detail in the fields around Cairnpapple
Derived from the Environment Agency Scottish LiDAR data


Gloucestershire Aerial Archaeology

with Heidi Walker

A field east of Coaley: Google data, Houseprices Lidar Map and the same emphasised with GIMP.*
When out and about, you can use DETAILS or ACCENTUATE (several times) in Snapseed on your phone to produce a similar result.

2017

* Edge Detect > Difference of Gaussians > Auto Equalise > Auto Levels


Barton End near Nailsworth

An example of how an accentuated LiDAR view can change the emphasis seen in a conventional photo.

Derived from: https://houseprices.io/lidar/ST8463197511/3d


Cirencester Abbey Grounds Park.

(using ACCENTUATE in Snapseed on a view of https://houseprices.io/lidar/SP0262402353/3d)


Gloucester

Some detail on Alney Island from: htpps://houseprices.io/lidar/SO8272018745/3d


Parch marks (left) at Gyde House, Painswick, emphasised with GIMP by manipulating the colour channels.

2018



Minchinhampton Common

A vertical view of Whitfield's Tump (centre) through an 850nm infrared filter with a golfing green below (west)

and the site of the old Stroud Water Company reservoir to the top right (south-east).

2019

Another Way to Take Aerial Photos

North Cerny

Heidi 'Wing' Walker

2017


Heidi in flight



The Simplest Approach to Aerial Thermography and Photography


The simplest way to start kite aerial photography is with an ActionCamera, selfie stick (2) and ~1m2, or larger, kite. A larger ~3m/9ft delta with fuzzy tail is a good general purpose kite, eg 1 & 2.



GoPro type set-up and variant for a phone, with or without a Flir One thermal imager which must be secured, eg with PVC tape. The larger stick has lockable sections.



An even simpler approach is to use a 2D, full-screen phone headset:

Ground-based archaeological thermography

Thermal delineation of a reservoir's wall footings below grazed grass in sunlight.


Heidi, John and Cade.

2019


http://drjohnwells.uk