Aerial photography at Heard Island 1987/88

Aerial photographs of Heard Island taken by 1987/88 ANARE.\n\nThe information below was taken from the ANARE report prepared after the Heard Island visit.\n\nPHOTOGRAPHIC ACTIVITIES, 1987/88.\n\nEric J. Woehler\n\nMovie and aerial photography were undertaken during the 87/88 visit.\n\nAERIAL PHOTOGRAPHY\n\nThe aerial photography was limited to two days, concurrent with the resupply visit by MV Nella Dan during Voyage 2, 18 and 19 October 1987.\n\nA 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.\n\nTable 1. Details of aerial photography (M = magnetic)\n\nExposures Height Bearing Subject\n\nRoll 1 18 October 1987\n\n001-050 300' 130 degrees M Spit Island (harems)\n\n051-102 300' 310 degrees Spit Island (harems)\n\n103-139 300' 120 degrees Spit Island (harems)\n\n140-175 300' 310 degrees Spit Island (harems)\n\n176-252 500' 310 degrees Spit Point towards Dovers Moraine (South Spit)\n\n253-303 400'-500' 300 degrees Spit Point towards Spit Camp (North Spit)\n\nRoll 2 19 October 1987\n\n020-117 040'-700' 330 degrees M Archaeological site, Sealers Corner Corinthian Bay rising from 040' to 700' (Exp 070) then down to 500-550'\n\n118-124 200' Seal harems on Walrus Beach, Atlas Cove.\n\n125-132 250' Flight path following coastline. Atlas Cove.\n\n133-136 350' Flight path following coastline. Atlas Cove.\n\n137-143 300' Seal harems on West Bay beach\n\n144-165 280'-300' 000 degrees Seal harems on South West Bay beach\n\n166-174 280'-300' 000 degrees Seal harems on South West Bay beach\n\n175-231 300'-250' Seal harems on Corinthian Bay beach flight path following coastline.\n\n232-247 300' 300 degrees Seal harems on Saddle Point saddle\n\n248-254 300' 100 degrees Seal harems on Saddle Point saddle\n\n255-257 300' 300 degrees Seal harems b/w Saddle Point and Challenger Glacier\n\n258-271 250' 300 degrees Seal harems on Hoseason Beach\n\n272-276 200' 300 degrees Seal harems on Hoseason Beach\n\n277-285 350' Atlas Cove Station area\n\nThe 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.\n\nFlight lines and photo centres representing the Roll 1 aerial photography (Film ANTC1082) are included in the aerial photography data available for download (see provided URL) and have Qinfo = 760. The flight lines and photo centres are provided as shapefiles and Qinfo is an attribute of the shapefiles. \n\nSee the Quality field for comments about the flight lines and photo centres.\n\nThe 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. \n\nContact the Australian Antarctic Data Centre for access to the prints:\n\nhttp://data.aad.gov.au/aadc/requests/request.cfm

1987/88年澳大利亚国家南极研究探险队（ANARE）拍摄的赫德岛航拍照片。

以下信息取自赫德岛考察结束后编制的ANARE报告。

1987/88年度摄影作业
埃里克·J·韦勒（Eric J. Woehler）

本次考察期间开展了电影拍摄与航空摄影工作。

航空摄影

本次航空摄影仅限两天，与1987年10月18日、19日的第二次航行中机动船“内拉丹号”（MV Nella Dan）的补给访期同步进行。

考察船搭载的两架休斯500D直升机中，有一架（编号HRK）加装了林哈夫相机（Linhoff camera），共使用两卷100米长的70毫米胶片进行拍摄。10月18日，第一卷胶片拍摄了斯皮特岛（Spit Island）以及南北斯皮特角；10月19日，第二卷胶片拍摄了四湾区域、鞍点（Saddle Point）、霍西森海滩（Hoseason Beach）以及科林斯湾海豹角（Sealers Corner, Corinthian Bay）的考古遗址。各卷胶片的详细信息见表1。

表1 航空摄影详情（M代表磁方位）

曝光编号 拍摄高度 方位角 拍摄对象
第1卷（1987年10月18日）
001-050 300英尺 130°磁方位 斯皮特岛（海豹群）
051-102 300英尺 310°磁方位 斯皮特岛（海豹群）
103-139 300英尺 120°磁方位 斯皮特岛（海豹群）
140-175 300英尺 310°磁方位 斯皮特岛（海豹群）
176-252 500英尺 310°磁方位 朝向多夫冰碛（南斯皮特角）的斯皮特角
253-303 400'-500英尺 300°磁方位 朝向斯皮特营地（北斯皮特角）的斯皮特角
第2卷（1987年10月19日）
020-117 40'-700英尺 330°磁方位 科林斯湾海豹角考古遗址，拍摄高度从40英尺升至700英尺（曝光编号070处），随后降至500-550英尺
118-124 200英尺 - 阿特拉斯湾的海象海滩海豹群
125-132 250英尺 - 沿海岸线飞行的航迹，阿特拉斯湾
133-136 350英尺 - 沿海岸线飞行的航迹，阿特拉斯湾
137-143 300英尺 - 西湾海滩的海豹群
144-165 280'-300英尺 0°方位 西南湾海滩的海豹群
166-174 280'-300英尺 0°方位 西南湾海滩的海豹群
175-231 300'-250英尺 - 科林斯湾海滩的海豹群，航迹沿海岸线行进
232-247 300英尺 300°方位 鞍点山脊的海豹群
248-254 300英尺 100°方位 鞍点山脊的海豹群
255-257 300英尺 300°方位 鞍点与挑战者冰川之间区域的海豹群
258-271 250英尺 300°方位 霍西森海滩的海豹群
272-276 200英尺 300°方位 霍西森海滩的海豹群
277-285 350英尺 - 阿特拉斯湾站区域

本次赫德岛东部区域的航空摄影，可对斯皮特岛的海豹群进行普查——该岛此前难以抵达。对南北斯皮特角及四湾区域的海豹群拍摄，则为验证当日地面计数结果提供了契机。所有曝光拍摄时的地面速度均约为60节。受低云覆盖影响，阿特拉斯湾区域的飞行高度通常限制在350英尺以下；而斯皮特角区域因高空强风，飞行高度被限制在500英尺。

代表第1卷航空摄影（胶片编号ANTC1082）的航迹与照片中心点，已包含在可下载的航空摄影数据中（详见提供的URL），其Qinfo属性值为760。航迹与照片中心点以形状文件（shapefiles）格式提供，Qinfo为该形状文件的属性字段。

有关航迹与照片中心点的说明，请查看Quality（质量）字段。

澳大利亚南极局（AAD）保存有部分第1卷胶片的冲印照片。这些照片曾被拼接并粘贴至展示板上，现已从板上取下，收纳于档案盒中。照片中心点形状文件属性表中的Print（冲印）字段值为Y时，即表示该帧照片存在冲印件。此类冲印照片仅限澳大利亚南极局内部使用，不可外借。

如需获取冲印照片，请联系澳大利亚南极数据中心：
http://data.aad.gov.au/aadc/requests/request.cfm