El NiÑo and La NiÑa Phenomena

Effect of El Nino 

La nina Phase

                   I learn that El Niño and La Niña are the names given to changes in the winds,atmospheric pressure, and seawater that occur in the Pacific Ocean near the equator. El Niño and La Niña are opposite phases of a back and forth cycle in the Pacific Ocean and the atmosphere above it. Unlike winter and summer, however, El Niño and La Niña do not change with the regularity of the seasons; instead, they repeat on average about every three or four years. They are the extremes in a vast repeating cycle called the Southern Oscillation, El Niño being the warm extreme and La Niña the cold extreme.
                It is called El Niño, meaning “the boy Child”, because it usually appears near the Christmas season. And  for La Niña  is “the girl Child”.  El Niño would cause a wet period while La Niña would typically cause a dry period in an specific area.
                LOVE OUR ENVIRONMENT. 

El Niño/La Niña Effects

http://journalweek.com/el-nino-la-nina-%E2%80%93-how-do-they-affect-us/

              

                            

Figure 4. Photographs of the floods and flood damage of October, 1983, in southern Arizona. Photographs by Peter L. Kresan, Dept. of Geosciences, University of Arizona, Tucson, AZ

A, Santa Cruz River from St. Mary's Bridge, Tucson; October 2, about 10 a.m.

B, Interstate 19 crossing of the Santa Cruz River, south of Tucson, October 3. View is downstream and shows the missing span on the north-bound bridge.

C, Bank erosion along Rillito Creek at Tucson, AZ, October 2. View shows the collapse of the bank at a townhouse development on Country Club Road. Direction of flow is from right to left.

D, Flood-plain damage along the San Francisco River (against the cliff) at Clifton, AZ, October 8. View is downstream.

http://geochange.er.usgs.gov/sw/changes/natural/elnino/