Geomorphic Agents

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University of Arizona “Wildcats”

Geomorphic Agents

Rank from low to high in order is glacier is low, wind is medium and waves/current is high. In Nome Alaska, the current importance processes is glacial processes. In Los Angeles, the current important process is coastal process. In Fargo, the current importance processes is aeolian processes. In Nome, glacier has begun created since 18000 years ago.

Biomes

Biome is a large terrestrial ecosystem characterized by specific plant communities and formations, usually named after the predominant vegetation in the region. Arctic Tundra (AAT) terrestrial biome occupies the Nome, Alaska area. Vegetation characteristic in this area is described as treeless; dwarf shrubs, stunted sedges, mosses, lichens, short grasses; alpine and grass meadows. Los Angeles, California, placed on Mediterranean shrubland (MSh) terrestrial biome. Vegetation characteristic in this area is described as short shrub, drought adapted, tending to grassy woodlands chaparral. In Fargo, North Dakota, needleleaf forest and montane forest (NF/MF) makes vegetation in that area characterized as is needleleaf conifers, evergreen pine, spruce, fir, Russian larch and a deciduous needleleaf.

Global Climate and Species Adaptations

Nome, Alaska is located in ET/Dwd of Koppen climatic classification. Most of this area experiences permafrost condition. Temperature of the warmest month is between 0-10C. Continuous snow covers the land for 8 – 10 months. Total annual PRECIP for Nome is 14.88mm. Daylength varies greatly throughout the year. Nome experiences long, cold winter and cool summer. Precipitation exceeds small potential evapotranspiration demand. Nome vegetation is low, ground level herbaceous plants, and some woody species. Root can penetrate only about 1 meter. Soils in this area are poorly developed periglacial surfaces that are underlain by permafrost. Los Angeles is located in Csb of Koppen climatic classification. Los Angeles has mediterranean dry-summer climates. This area is dry in summer and wet in winter. Temperature of the warmest month is below 22C. In this area, 70% of annual precipitation occurs during the winter months. Total annual precip for Los Angeles is 12.01 mm. Natural vegetation features a hard leaf, drought resistant. The vegetation varies between woody shrubs and grassy woodlands. The dominant shrub formations that occupy these regions are stunted and tough in their ability to withstand hot-summer drought. Many commercial agriculture food types produced only in this mediterranean climate biome. Fargo is located in Daft of Koppen climatic classification. This area has humid continental climate and hot in summer. This area is hot in summer and dry in winter.

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