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    El nino and La nina

    Though ENSO is a single climate phenomenon, it has three states, or phases, it can be in. The two opposite phases, “El Niño” and “La Niña,” require certain changes in both the ocean and the atmosphere because ENSO is a coupled climate phenomenon. “Neutral” is in the middle of the continuum.

    1. El Niño: A warming of the ocean surface, or above-average sea surface temperatures (SST), in the central and eastern tropical Pacific Ocean. Over Indonesia, rainfall tends to become reduced while rainfall increases over the tropical Pacific Ocean. The low-level surface winds, which normally blow from east to west along the equator (“easterly winds”), instead weaken or, in some cases, start blowing the other direction (from west to east or “westerly winds”).
    2. La Niña: A cooling of the ocean surface, or below-average sea surface temperatures (SST), in the central and eastern tropical Pacific Ocean. Over Indonesia, rainfall tends to increase while rainfall decreases over the central tropical Pacific Ocean. The normal easterly winds along the equator become even stronger.
    3. Neutral: Neither El Niño or La Niña. Often tropical Pacific SSTs are generally close to average. However, there are some instances when the ocean can look like it is in an El Niño or La Niña state, but the atmosphere is not playing along (or vice versa).









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    /groups/apenvironmentalscience/search/index.rss?tag=hotlist/groups/apenvironmentalscience/search/?tag=hotWhat’s HotHotListHot!?tag=hot6/groups/apenvironmentalscience/sidebar/HotListadminadmin2013-02-05 02:24:03+00:002013-02-05 02:24:03updated4Added tag - hotadminadmin2013-02-05 02:24:02+00:002013-02-05 02:24:02addTag3adminadmin2013-02-05 02:05:35+00:002013-02-05 02:05:35updated2First createdadminadmin2013-02-05 02:03:35+00:002013-02-05 02:03:35created1wiki2013-02-05T02:24:03+00:00groups/apenvironmentalscience/wiki/394a8FalseEnergy notes/groups/apenvironmentalscience/wiki/394a8/Energy_notes.htmladmin4 updatesEnergy notes Week of 2.4.13: energy wrap-up e2 video: coal vs. nuclear in class AP exams: FRQ 2002.1 2004.2 2006.1 2007.2 2008.1 ...Falseadmin2013-02-05T02:24:03+00:00adminadmin2013-02-05 02:23:20+00:002013-02-05 02:23:20updated6Added tag - hotadminadmin2013-02-05 02:23:18+00:002013-02-05 02:23:18addTag5adminadmin2013-02-05 02:23:12+00:002013-02-05 02:23:12updated4adminadmin2013-02-05 02:21:48+00:002013-02-05 02:21:48updated3adminadmin2013-02-05 02:20:26+00:002013-02-05 02:20:26updated2First createdadminadmin2013-02-05 02:06:00+00:002013-02-05 02:06:00created1wiki2013-02-05T02:23:20+00:00groups/apenvironmentalscience/wiki/c360bFalseFeb-May plan/groups/apenvironmentalscience/wiki/c360b/FebMay_plan.htmladmin6 updatesFeb-May plan 1. conclusion of energy chapters (see previous wiki) 2. GCC AP questions FRQ: 2006.2 2005.3 2005.4 2007.3 ...Falseadmin2013-02-05T02:23:20+00:00adminadmin2012-03-07 05:53:55+00:002012-03-07 05:53:55updated14adminadmin2012-03-07 05:43:38+00:002012-03-07 05:43:38updated13adminadmin2012-03-07 05:41:35+00:002012-03-07 05:41:35updated12adminadmin2012-03-07 05:38:57+00:002012-03-07 05:38:57updated11Added tag - hotadminadmin2012-03-07 05:38:55+00:002012-03-07 05:38:55addTag10adminadmin2012-03-07 05:36:47+00:002012-03-07 05:36:47updated9adminadmin2012-03-07 05:22:26+00:002012-03-07 05:22:26updated8adminadmin2012-03-07 05:20:01+00:002012-03-07 05:20:01updated7adminadmin2012-03-07 05:18:58+00:002012-03-07 05:18:58updated6adminadmin2012-03-07 04:58:55+00:002012-03-07 04:58:55updated5adminadmin2012-03-07 04:57:33+00:002012-03-07 04:57:33updated4adminadmin2012-03-07 04:56:53+00:002012-03-07 04:56:53updated3adminadmin2012-03-07 04:54:20+00:002012-03-07 04:54:20updated2First createdadminadmin2012-03-07 04:53:33+00:002012-03-07 04:53:33created1weblog2012-03-07T05:53:55+00:00groups/apenvironmentalscience/weblog/de030FalseGreen Apple/groups/apenvironmentalscience/weblog/de030/Green_Apple.htmladmin14 updatesGreen Apple Team, Please watch this video about NYC: Trailer: http://www.pbs.org/e2/episodes/101_the_green_apple_trailer.html On the server: http://physics.hpa...Falseadmin2012-03-07T05:53:55+00:00adminadmin2011-09-13 19:08:24+00:002011-09-13 19:08:24updated4Added tag - hotadminadmin2011-09-13 19:08:22+00:002011-09-13 19:08:22addTag3adminadmin2011-09-13 19:08:10+00:002011-09-13 19:08:10updated2First createdadminadmin2011-09-13 19:04:30+00:002011-09-13 19:04:30created1weblog2011-09-13T19:08:24+00:00groups/apenvironmentalscience/weblog/4ecddFalseQuestions for Wednesday, wiki adds/groups/apenvironmentalscience/weblog/4ecdd/Questions_for_Wednesday_wiki_adds.htmladmin4 updatesQuestions for Wednesday, wiki adds Team, I'd like to try something for class tomorrow: each of you to create a question from chapter 3, and email it to me by this evening (Tuesday). Pl...Falseadmin2011-09-13T19:08:24+00:00adminadmin2011-09-08 21:36:21+00:002011-09-08 21:36:21updated29adminadmin2011-08-24 23:20:40+00:002011-08-24 23:20:40updated28adminadmin2011-08-24 22:42:36+00:002011-08-24 22:42:36updated27adminadmin2011-08-22 02:41:09+00:002011-08-22 02:41:09updated26adminadmin2011-08-22 02:40:02+00:002011-08-22 02:40:02updated25adminadmin2011-08-21 20:39:11+00:002011-08-21 20:39:11updated24adminadmin2011-08-21 20:30:42+00:002011-08-21 20:30:42updated23adminadmin2011-08-21 20:30:13+00:002011-08-21 20:30:13updated22adminadmin2011-08-21 20:25:48+00:002011-08-21 20:25:48updated21adminadmin2011-08-21 20:25:18+00:002011-08-21 20:25:18updated20adminadmin2011-08-21 00:22:12+00:002011-08-21 00:22:12updated19adminadmin2011-08-21 00:18:56+00:002011-08-21 00:18:56updated18adminadmin2011-08-21 00:15:43+00:002011-08-21 00:15:43updated17adminadmin2011-08-21 00:12:37+00:002011-08-21 00:12:37updated16adminadmin2011-08-21 00:12:02+00:002011-08-21 00:12:02updated15adminadmin2011-08-20 23:59:41+00:002011-08-20 23:59:41updated14Added tag - hotadminadmin2011-08-20 23:59:38+00:002011-08-20 23:59:38addTag13Added tag - conservationadminadmin2011-08-20 23:59:32+00:002011-08-20 23:59:32addTag12Added tag - critical thinkingadminadmin2011-08-20 23:59:19+00:002011-08-20 23:59:19addTag11Added tag - ch1adminadmin2011-08-20 23:59:08+00:002011-08-20 23:59:08addTag10Added tag - sustainabilityadminadmin2011-08-20 23:59:05+00:002011-08-20 23:59:05addTag9adminadmin2011-08-20 20:47:39+00:002011-08-20 20:47:39updated8adminadmin2011-08-20 20:46:15+00:002011-08-20 20:46:15updated7adminadmin2011-08-20 20:43:07+00:002011-08-20 20:43:07updated6adminadmin2011-08-20 19:14:13+00:002011-08-20 19:14:13updated5adminadmin2011-08-20 19:11:26+00:002011-08-20 19:11:26updated4adminadmin2011-08-20 18:59:57+00:002011-08-20 18:59:57updated3adminadmin2011-08-20 18:56:59+00:002011-08-20 18:56:59updated2First createdadminadmin2010-11-07 01:41:28+00:002010-11-07 01:41:28created1wiki2011-09-08T21:36:21+00:00groups/apenvironmentalscience/wiki/welcomeFalseCh01 Overview/groups/apenvironmentalscience/wiki/welcome/Ch01_Overview.htmladmin29 updatesCh01 Overview Welcome to our APES wiki. You should be able to do the following after logging in with your account: To create a new page, click the ...Falseadmin2011-09-08T21:36:21+00:00hot/groups/apenvironmentalscience/search/index.rss?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcomelist/groups/apenvironmentalscience/search/?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcomeRecent ChangesRecentChangesListUpdates?sort=modifiedDate&kind=all&sortDirection=reverse&excludePages=wiki/welcome0/groups/apenvironmentalscience/sidebar/RecentChangesListmodifiedDateallRecent ChangesRecentChangesListUpdateswiki/welcomeNo recent changes.reverse5searchlist/groups/apenvironmentalscience/calendar/Upcoming EventsUpcomingEventsListEvents1Getting events…