ESS 101 Lecture Notes - Lecture 18: Linear Scale, International Date Line

• School: UW
• Department: Earth and Space Sciences
• Course: ESS 101
• Professor: Swanson Terry

Document Summary

Geoscientists utilize many different techniques to study the earth. Many of these te(cid:272)h(cid:374)i(cid:395)ues do (cid:374)ot al(cid:449)a(cid:455)s i(cid:374)(cid:448)ol(cid:448)e field(cid:449)o(cid:396)k o(cid:396) di(cid:396)e(cid:272)t sa(cid:373)pli(cid:374)g of the ea(cid:396)th"s su(cid:396)fa(cid:272)e. Since topography and substrate geology play important roles in landslide processes, it is important for a geoscientist to review the slope conditions and the underlying substrate geology to better understand potential landslide hazards for a given study area. Geoscientists also utilize maps and remote imagery to record their field data so that it can be synthesized and interpreted within a spatial context and shared with other geoscientists or the public. Map: two-di(cid:373)e(cid:374)sio(cid:374)al (cid:396)ep(cid:396)ese(cid:374)tatio(cid:374) of a po(cid:396)tio(cid:374) of the ea(cid:396)th"s su(cid:396)fa(cid:272)e. maps ha(cid:448)e been used by ancient and modern civilizations for over three thousand years. Topographic map: three-di(cid:373)e(cid:374)sio(cid:374)al (cid:396)ep(cid:396)ese(cid:374)tatio(cid:374) of the ea(cid:396)th"s su(cid:396)fa(cid:272)e, (cid:449)he(cid:396)e surface elevation or topography is represented by contour lines. Latitude: an angular distance measured north or south of the ea(cid:396)th"s e(cid:395)uato(cid:396), (cid:449)hi(cid:272)h is.