History of Aerial Photography •2002 - Field workers document the effects of the M7.9 Denali Fault Earthquake with digital cameras from planes and helicopters Mosaic view of rock avalanches across Black Rapids Glacier. Photo by Dennis Trabant, USGS; mosaic by Rod March, USGS. Aerial view of the Trans-Alaska Pipeline and Richardson Highway. Lesson 5: Reading and Interpreting Maps and Aerial Photographs aerial photography and and principles of interpretation is needed. • Aerial photographs are used to construct topographic maps and to keep the map information up-to-date. The best sites.miis.edu peculiar to aerial photographs. This kind of interpretation is no aerial photo interpretation in the sense in which we understand this ; it is an interpreta­ tion of the result of a pedological research. Modern soil survey and soil classification are based on the study of the soil profile. Introduction To Aerial Photographs The development of aerial photography in India is briefly given in Box 6.I. breadth and height from such photographs. Hence, they are used as the data source for creating and updating topographic maps. Image Interpretation: It is an art of identifying images of objects and judging their relative significance. Aerial photography has two uses that are of interest within the context of this course: (1) Cartographers and planners take detailed measurements from aerial photos in the preparation of maps. (2) Trained interpreters utilize arial photos to vertical aerial photography, although there has been and may well be The procedures de-' scribed below consequently pertain almost entirely to use with vertical aerial photographs. The writer is indebted to William A. Fischer for his description of 6 PROCEDURES AND STUDIES IN PHOTOGEOLOGY Tactical Interpretation of Air Photos, TM 30-246, NAVAER 10-35-613, 1954. This manual shows the basics of photo interpretation. On good quality aerial photography of a scale of 1:10,000 or larger, it is often possible to measure the length of the tube of a coast artillery piece. This will GIS 4021c Aerial Photo Interpretation 3 Course Goals/Objectives: By the end of this course you will have the ability to translate aerial photographs into useful descriptions of landscapes, e.g. reports, tables, figures, and maps. Interpretation Photo Interpretation: The examination of aerial photographs/images for the purpose of identifying objects and judging their significance. Observation & Inference: Observation provides the raw data for interpretation. Inference is the logical process by which observation and interpretation are made. Fundamentals of Photographic Although the features are visible, they are not always easily identifiable. The process of studying and gathering the information required to identify the various cultural and natural features is called photo interpretation. With careful interpretation, air photos are an excellent source of spatial data for studying the Earth's environment. An image interpretation exercise is composed of several different stages: Object recognition Information derivation • which can be approached with several different strategies using a variety of tools, • the results of which need to quality assessed. An image interpretation exercise is composed of several different stages: Object recognition Information derivation • which can be approached with several different strategies using a variety of tools, • the result