Aerial photography at Heard Island 1987/88Entry ID: ASAC_1219_HIMI_Img87
Abstract: Aerial photographs of Heard Island taken by 1987/88 ANARE.
The information below was taken from the ANARE report prepared after the Heard Island visit.
PHOTOGRAPHIC ACTIVITIES, 1987/88.
Eric J. Woehler
Movie and aerial photography were undertaken during the 87/88 visit.
The aerial photography was limited to two days, concurrent with the resupply visit by MV Nella Dan ... during Voyage 2, 18 and 19 October 1987.
A Linhoff camera was mounted in one (HRK) of the two Hughes 500D helicopters on board and two 100 metre rolls of 70mm film were exposed. The first roll was exposed at Spit Island and North and South Spit on 18 October. The second roll was exposed around the Four Bays region, Saddle Point, Hoseason Beach and the archaeological site at Sealers Corner, Corinthian Bay on 19 October. Details of each roll are given in Table 1.
Table 1. Details of aerial photography (M = magnetic)
Exposures Height Bearing Subject
Roll 1 18 October 1987
001-050 300' 130 degrees M Spit Island (harems)
051-102 300' 310 degrees Spit Island (harems)
103-139 300' 120 degrees Spit Island (harems)
140-175 300' 310 degrees Spit Island (harems)
176-252 500' 310 degrees Spit Point towards Dovers Moraine (South Spit)
253-303 400'-500' 300 degrees Spit Point towards Spit Camp (North Spit)
Roll 2 19 October 1987
020-117 040'-700' 330 degrees M Archaeological site, Sealers Corner Corinthian Bay rising from 040' to 700' (Exp 070) then down to 500-550'
118-124 200' Seal harems on Walrus Beach, Atlas Cove.
125-132 250' Flight path following coastline. Atlas Cove.
133-136 350' Flight path following coastline. Atlas Cove.
137-143 300' Seal harems on West Bay beach
144-165 280'-300' 000 degrees Seal harems on South West Bay beach
166-174 280'-300' 000 degrees Seal harems on South West Bay beach
175-231 300'-250' Seal harems on Corinthian Bay beach flight path following coastline.
232-247 300' 300 degrees Seal harems on Saddle Point saddle
248-254 300' 100 degrees Seal harems on Saddle Point saddle
255-257 300' 300 degrees Seal harems b/w Saddle Point and Challenger Glacier
258-271 250' 300 degrees Seal harems on Hoseason Beach
272-276 200' 300 degrees Seal harems on Hoseason Beach
277-285 350' Atlas Cove Station area
The aerial photography at the eastern Heard Island allowed for the harems on Spit Island to be censused as the island is otherwise inaccessible. Photography of the harems on North and South Spit and the Four Bays region provided the opportunity of verifying ground counts made on the same day. All exposures were made at approximately 60 knots ground-speed. Flying heights were generally confined to below 350' at Atlas Cove by a low cloud cover and to 500' at Spit by strong winds at higher altitudes.
Flight lines and photo centres representing the Roll 1 aerial photography (Film ANTC1082) are included in the aerial photography data available for download (see url below) and have Qinfo = 760. The flight lines and photo centres are provided as shapefiles and Qinfo is an attribute of the shapefiles.
See the Quality field for comments about the flight lines and photo centres.
The Australian Antarctic Division (AAD) has prints of some Roll 1 frames. They were stitched together, and glued to a presentation board but have since been separated from the board and stored in an archival box. Print = Y in the attribute table of the photo centres shapefile indicates there is a print for that frame. The prints are not available for loan outside the AAD.
Contact the Australian Antarctic Data Centre for access to the prints:
Start Date: 1987-10-18Stop Date: 1987-10-19
Quality Problems were encountered with the motor drive of the camera. A 100m roll of 70mm film is approximately 350 exposures. After approximately 300 exposures had been taken on each roll, the motor wind was found to be unable to wind on the film. As a result, both rolls had to have the last 50 exposures worth of film hand wound off the camera. The cause of this problem was not determined but ... represents a real hindrance to the proper functioning of the camera.
Flight lines for Roll 1 (film ANTC1082) were digitised in the Australian Antarctic Data Centre based on 'Heard Island 1987/88 ANARE Report' compiled by R.Kirkwood, E.Woehler and H.Burton, June 1989, page 318.
A 1988/1991 SPOT image mosaic of Heard Island was used as background. It was not possible to be sure about where runs 5 and 6 end. The low heights of the photos makes it difficult to determine location.
Photo centres were interpolated at equal intervals along the flight lines. These give approximate photo locations. It should not be assumed that they represent the actual photo centres, due to the uncertainty in the photo locations.
No flight lines were estimated for Roll 2 (film ANTC1083) as most frames on this film are dark and do not show information. Some features at Atlas Cove can be seen in frames 277 to 285 but these too are dark.
Access Constraints Aerial photography flight lines and photo centres can be downloaded at the provided URL.
The aerial photos themselves are not available for loan, but can be accessed at the Australian Antarctic Data Centre.
Use Constraints This data set conforms to the PICCCBY Attribution License
Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_121... when using these data.
Data Set Progress
Distribution Media: HTTP
Role: TECHNICAL CONTACT
Email: eric.woehler at gmail.com
Province or State: Tasmania
Postal Code: 7001
Role: DIF AUTHOR
Phone: +61 3 6232 3244
Fax: +61 3 6232 3351
Email: dave.connell at aad.gov.au
Australian Antarctic Division 203 Channel Highway
Province or State: Tasmania
Postal Code: 7050
Extended Metadata Properties
(Click to view more)
Creation and Review Dates
DIF Creation Date: 1999-10-07
Last DIF Revision Date: 2014-08-28