Books are shelved in general subject categories using the Library of Congress classification system. You may want to supplement your use of the catalog with browsing shelf areas for your topic. Below is a brief listing of some of the subject locations in the field of geography.
G Geography (General)
GB Physical Geography
GF Human Ecology. Anthropogeography
HF 1-8000 Economic Geography
QC 851-999 Meteorology. Climatology