physical geography

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The study of the natural features of the earth's surface, especially in its current aspects, including land formations, climate, currents, and distribution of flora and fauna.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun geography The subfield of geography that studies physical patterns and processes of the Earth. It aims to understand the forces that produce and change rocks, oceans, weather, and global flora and fauna patterns.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the study of physical features of the earth's surface