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2 talks found:

(Click on mtg# for details and minutes)

Rec Mtg# Year Authors Institution Talk title
1 1085 1981 Judith Ehlen US Army Topographic Laboratory Identifying igneous rocks on air photos by interpreting photo tone and photo texture
2 1290 1997 Judith Ehlen US Army Topographic Engineering Center Predicting fracture characteristics in weathered granite.
Judith Ehlen was Chair of the Public srvc Committee in 1985
Judith Ehlen was on the Council in 1989
Judith Ehlen was on the Council in 1990
Judith Ehlen was Chair of the Public srvc Committee in 1991
Judith Ehlen was Chair of the Public srvc Committee in 1992
Judith Ehlen was Chair of the Awards Committee in 1995
Judith Ehlen was Treasurer in 1998
Judith Ehlen was Treasurer in 1999
Judith Ehlen was Treasurer in 2000