The photographs are of Okuma Town in Fukushima, where David used to live and where the Tokyo Electrical Power Co nuclear power reactor that exploded is situated. The link is below. The photographs are in two separate albums for pre- and post- the disaster. It seems the trick with Flickr is that you find the page (and albums) of the particular person you are looking for by searching their actual name or account name through the people category (in this case David Pike or watashinoshashin). There is a commentary at the top of each album's photographs that you can read by clicking 'show more'. David hopes it will be of use to people.
Thank you for presenting and sharing, David.