IRIAN JAYA, INDONESIA, and NEW ZEALAND

CONTENTS
Glaciers of Irian Jaya, Indonesia ___________________ HI
Abstract ________________________________ 1
Introduction ______________________________ 1
FIGURE 1. Index map of Irian Jaya showing the location of the highest
mountains ______________________________ 2
2. Map of the ice fields of the Puncak Jaya area showing retreat of the
ice boundaries since about 1800 to 1850 A.D. _________ 4
3. Oblique aerial photograph looking east at several of the glaciers
on Puncak Jaya __________________________ 6
Glacier imagery and mapping _____________________ 7
Aerial photography ______________________ 7
Maps of the Puncak Jaya region and of the glacier
recession _________________________ 10
Satellite imagery _______________________ 10
FIGURE 4. Mosaic of U.S. Army Air Force vertical aerial photographs of the
Northwall Firn in 1942 ______________________ 7
5. U.S. Army Air Force trimetrogon oblique aerial photograph looking
south at the glaciers in 1942 __________________ 8
6. Oblique aerial photograph looking east at the glaciers in 1972 __ 9
7. Index map to the optimum Landsat 1, 2, and 3 images of the
glaciers of Irian Jaya ______________________ 11
TABLE 1. Optimum Landsat 1, 2, and 3 images of the glaciers of Irian
Jaya _______________________________ 12
Observation and mapping of the glaciers shown on Landsat images 13
Puncak Jaya and Ngga Pilimsit ____________ _ 13
Puncak Mandala _______________________ 18
FIGURE 8. Landsat 1 image showing the ice fields of the Puncak Jaya
region ________________________________ 14
9. Oblique aerial photograph looking east at the Ngga Pilimsit ice cap
in 1972 _______________________________ 15
10. An approximately 1:275,000-scale enlargement of part of a Landsat 1
image showing the Puncak Jaya glaciers and Ngga Pilimsit _ 15
11. Thematic sketch map showing satellite-derived boundary of Puncak
Jaya glaciers in 1974 compared with the 1972 CGE boundary _ 16
TABLE 2. Ice areas in the Puncak Jaya region _________________ 18
Changes in the Puncak Jaya glaciers, 1974 to 1983 ______ 19
Conclusion _______________________________ 19
Acknowledgments ___________________________ 19
References cited _________________________ 20
CONTENTS XI