{"id":611,"date":"2022-04-22T16:40:00","date_gmt":"2022-04-22T14:40:00","guid":{"rendered":"http:\/\/www.cosmoespai.com\/cat\/?p=611"},"modified":"2022-04-21T15:39:10","modified_gmt":"2022-04-21T13:39:10","slug":"per-que-a-la-muntanya-fa-mes-fred-que-al-nivell-del-mar","status":"publish","type":"post","link":"https:\/\/www.cosmoespai.com\/cat\/per-que-a-la-muntanya-fa-mes-fred-que-al-nivell-del-mar\/","title":{"rendered":"Per qu\u00e8 a la muntanya fa m\u00e9s fred que al nivell del mar?"},"content":{"rendered":"\n<p class=\"has-text-align-justify\">\u00c9s sabut per tothom que al nivell del mar hi ha una temperatura m\u00e9s c\u00e0lida que al cim d\u2019una muntanya. No obstant, molta gent no sabria explicar per qu\u00e8 succeeix aquest fenomen. En aquest article explicar\u00e9 els dos motius principals pels que fa m\u00e9s fred a la muntanya.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>Pressi\u00f3 atmosf\u00e8rica<\/strong><\/u><\/em><\/h4>\n\n\n\n<p class=\"has-text-align-justify\">Possiblement ja coneixereu la relaci\u00f3 entre la temperatura i la pressi\u00f3: quan es pressuritza l\u2019aire (o qualsevol altre gas), aquest s\u2019escalfa, mentre que, si es redueix la pressi\u00f3, es torna m\u00e9s fred. La pressi\u00f3 atmosf\u00e8rica indica la quantitat d\u2019aire que hi ha sobre nosaltres. Per exemple, si la pressi\u00f3 \u00e9s de 1000 mil\u00b7libars, vol dir que hi ha aproximadament 10 tones d\u2019aire sobre cada metre quadrat de terra.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Aquesta pressi\u00f3 que he mencionat (1000 mil\u00b7libars) \u00e9s aproximadament la que hi ha al nivell del mar. A mesura que pugem d\u2019altitud, la pressi\u00f3 disminueix per dos factors principals. Un d\u2019ells \u00e9s la menor atracci\u00f3 gravitat\u00f2ria que exerceix la Terra sobre les mol\u00e8cules d\u2019aire. L\u2019altre factor consisteix en que l\u2019aire calent que puja de les baixes altituds tendeix a expandir-se, pel que es torna menys dens, i per tant m\u00e9s fred.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Per tant, veiem que la pressi\u00f3 de l\u2019aire juga un paper important en la temperatura d\u2019un lloc.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><em><u><strong>Retenci\u00f3 del calor<\/strong><\/u><\/em><\/h4>\n\n\n\n<p class=\"has-text-align-justify\">Un altre factor que fa que faci m\u00e9s fred a la muntanya t\u00e9 a veure amb la retenci\u00f3 del calor, que est\u00e0 en part relacionada amb el punt que hem vist anteriorment.<\/p>\n\n\n\n<p class=\"has-text-align-justify\">Al nivell del mar, on hi ha m\u00e9s aire, la llum del sol que arriba al terra es veu atrapada sota uns 100 kil\u00f2metres d\u2019aire i n\u00favols que intercepten l\u2019escalfor i tornen a enviar part d\u2019aquesta a la superf\u00edcie. No obstant, a una major altitud, aquest efecte es veu redu\u00eft considerablement. Per sobre una certa al\u00e7ada, l\u2019atmosfera perd escalfor m\u00e9s r\u00e0pidament del que pot ser escalfada, pel que es fa cada cop m\u00e9s freda.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<p><strong>Entrades Similars:<\/strong><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/perque-a-lequador-no-hi-ha-huracans\/\">Perqu\u00e8 a l\u2019Equador no hi ha huracans?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/com-es-forma-la-neu\/\">Com es forma la neu?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/neu-al-sahara-un-fenomen-poc-comu\/\">Neu al S\u00e0hara, un fenomen poc com\u00fa<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/la-terra-saprima-57-000-tones-cada-any\/\">La Terra s\u2019aprima 57 000 tones cada any<\/a><\/p>\n\n\n\n<p><strong>Entrades Populars:<\/strong><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/perque-la-lluna-nomes-ens-ensenya-una-cara\/\">Perqu\u00e8 la Lluna nom\u00e9s ens ensenya una cara?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/stephenson-2-18-lestrella-mes-gran-coneguda-a-lunivers\/\">Stephenson 2-18, l\u2019estrella m\u00e9s gran coneguda a l\u2019univers<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/lexplotacio-minera-al-cinturo-dasteroides-una-font-de-recursos\/\">L\u2019explotaci\u00f3 minera al cintur\u00f3 d\u2019asteroides, una font de recursos<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/la-brossa-espacial-un-gran-problema\/\">La brossa espacial, un gran problema<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/com-es-van-extingir-els-dinosaures\/\">Com es van extingir els dinosaures?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/que-passaria-si-la-terra-deixes-de-rotar\/\">Qu\u00e8 passaria si la Terra deix\u00e9s de rotar?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/la-missio-a-venus-de-la-sonda-venus-express-per-la-esa\/\">La missi\u00f3 a Venus de la sonda Venus Express per la ESA<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/quins-son-els-requisits-per-a-ser-un-planeta\/\">Quins s\u00f3n els requisits per a ser un planeta?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/perque-no-es-poden-sentir-sons-a-lespai\/\">Perqu\u00e8 no es poden sentir sons a l\u2019espai?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/quina-mida-i-forma-tindrien-els-extraterrestres\/\">Quina mida i forma tindrien els extraterrestres?<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/www.cosmoespai.com\/cat\/les-unitats-de-mesura-que-fem-servir-en-astronomia\/\">Les unitats de mesura que fem servir en astronomia<\/a><\/p>\n\n\n\n<p><strong>Entrades Recents:<\/strong><\/p>\n\n\n<ul class=\"wp-block-latest-posts__list is-grid columns-3 wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/com-viatjar-al-futur-sense-violar-les-lleis-de-la-fisica\/\">Com Viatjar al Futur Sense Violar les Lleis de la F\u00edsica<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-es-la-gravetat\/\">Qu\u00e8 \u00e9s la gravetat?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-hi-ha-mes-materia-que-antimateria-a-lunivers\/\">Per qu\u00e8 hi ha m\u00e9s mat\u00e8ria que antimat\u00e8ria a l\u2019univers?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/que-es-lantimateria\/\">Qu\u00e8 \u00e9s l\u2019antimat\u00e8ria?<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-els-centres-de-les-galaxies-contenen-forats-negres\/\">Per qu\u00e8 els centres de les gal\u00e0xies contenen forats negres?<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>\u00c9s sabut per tothom que al nivell del mar hi ha una temperatura m\u00e9s c\u00e0lida que al cim d\u2019una muntanya. No obstant, molta gent no<span class=\"read-more-link\"><a class=\"read-more\" href=\"https:\/\/www.cosmoespai.com\/cat\/per-que-a-la-muntanya-fa-mes-fred-que-al-nivell-del-mar\/\">Continuar llegint<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":613,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":""},"categories":[1,134],"tags":[561,556,555,557,298,558,560,256],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/04\/Muntanyes_Fred.jpg?fit=720%2C405","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":526,"url":"https:\/\/www.cosmoespai.com\/cat\/com-es-forma-la-neu\/","url_meta":{"origin":611,"position":0},"title":"Com es forma la neu?","author":"Ferran","date":"31 de desembre de 2021","format":false,"excerpt":"La neu \u00e9s un s\u00edmbol caracter\u00edstic de l\u2019hivern, i la que fa possible diverses activitats de muntanya. No obstant, el proc\u00e9s de formaci\u00f3 de la neu \u00e9s lent, i s\u2019han de donar unes condicions especials per a que aquest proc\u00e9s tingui lloc. La formaci\u00f3 de la neu Per a que\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/12\/Formaci\u00f3_Neu.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/12\/Formaci\u00f3_Neu.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/12\/Formaci\u00f3_Neu.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2021\/12\/Formaci\u00f3_Neu.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":652,"url":"https:\/\/www.cosmoespai.com\/cat\/per-que-fa-mes-calor-a-lequador-que-als-pols\/","url_meta":{"origin":611,"position":1},"title":"Per qu\u00e8 fa m\u00e9s calor a l\u2019equador que als pols?","author":"Ferran","date":"19 de juny de 2022","format":false,"excerpt":"Un error com\u00fa \u00e9s pensar que fa m\u00e9s calor a l\u2019equador perqu\u00e8 es troba m\u00e9s a prop del Sol que altres zones de la Terra. No obstant, la dist\u00e0ncia que separa l\u2019equador dels pols \u00e9s tant petita, en comparaci\u00f3 a l\u2019enorme dist\u00e0ncia que separa la Terra del Sol, (150 000\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/06\/Temperatura_Equador-1.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/06\/Temperatura_Equador-1.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/06\/Temperatura_Equador-1.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/06\/Temperatura_Equador-1.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":728,"url":"https:\/\/www.cosmoespai.com\/cat\/com-es-produeixen-els-llamps\/","url_meta":{"origin":611,"position":2},"title":"Com es produeixen els llamps?","author":"Ferran","date":"2 de setembre de 2022","format":false,"excerpt":"Els llamps s\u00f3n un fenomen natural pel qual els n\u00favols descarreguen una quantitat enorme d\u2019energia sobre la Terra. Tot i que sabem des de fa temps les condicions necess\u00e0ries per que es produeixin llamps, predir quan i on tindran lloc els llamps no \u00e9s possible. Generaci\u00f3 del camp el\u00e8ctric Les\u2026","rel":"","context":"A &quot;La Terra&quot;","block_context":{"text":"La Terra","link":"https:\/\/www.cosmoespai.com\/cat\/category\/sistema-solar\/la-terra\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/09\/Llamps.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/09\/Llamps.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/09\/Llamps.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/09\/Llamps.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":709,"url":"https:\/\/www.cosmoespai.com\/cat\/quina-temperatura-hi-ha-a-lespai\/","url_meta":{"origin":611,"position":3},"title":"Quina temperatura hi ha a l\u2019espai?","author":"Ferran","date":"14 d'agost de 2022","format":false,"excerpt":"M\u00e9s enll\u00e0 de la Terra, l\u2019espai exterior \u00e9s un lloc inh\u00f2spit per l\u2019\u00e9sser hum\u00e0. A prop de les estrelles, la temperatura \u00e9s molt elevada, per\u00f2 aix\u00f2 canvia r\u00e0pidament a mesura que ens allunyem d\u2019aquestes. A l\u2019espai interestel\u00b7lar, les temperatures s\u2019apropen al zero absolut (0 graus Kelvin = -273,15\u00baC). Per qu\u00e8\u2026","rel":"","context":"A &quot;General&quot;","block_context":{"text":"General","link":"https:\/\/www.cosmoespai.com\/cat\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/08\/Temperatura_Espai.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/08\/Temperatura_Espai.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/08\/Temperatura_Espai.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/08\/Temperatura_Espai.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":632,"url":"https:\/\/www.cosmoespai.com\/cat\/on-comenca-lespai\/","url_meta":{"origin":611,"position":4},"title":"On comen\u00e7a l\u2019espai?","author":"Ferran","date":"21 de maig de 2022","format":false,"excerpt":"Tot i semblar una preguntar senzilla, l\u2019altura en la qual comen\u00e7a l\u2019espai no est\u00e0 del tot clara, i les definicions sobre la frontera entre l\u2019atmosfera i l\u2019espai poden variar segons la font. En efecte, no hi ha un punt espec\u00edfic on acabi l\u2019atmosfera, sin\u00f3 que aquesta es va fent cada\u2026","rel":"","context":"A &quot;General&quot;","block_context":{"text":"General","link":"https:\/\/www.cosmoespai.com\/cat\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/05\/Comen\u00e7ament_Espai.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/05\/Comen\u00e7ament_Espai.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/05\/Comen\u00e7ament_Espai.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/05\/Comen\u00e7ament_Espai.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]},{"id":664,"url":"https:\/\/www.cosmoespai.com\/cat\/la-formacio-de-les-aurores-boreals-que-son\/","url_meta":{"origin":611,"position":5},"title":"La formaci\u00f3 de les aurores boreals. Qu\u00e8 s\u00f3n?","author":"Ferran","date":"26 de juny de 2022","format":false,"excerpt":"La humanitat sempre ha estat fascinada per les aurores boreals, uns incre\u00efbles espectacles de llum que il\u00b7luminen amb els seus colors el cel nocturn. Aquests esdeveniments tenen lloc fonamentalment als pols de la Terra: al Pol Nord s'anomenen aurores boreals, i quan tenen lloc al Pol Sud s\u2019anomenen aurores australs.\u2026","rel":"","context":"A &quot;General&quot;","block_context":{"text":"General","link":"https:\/\/www.cosmoespai.com\/cat\/category\/general\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/06\/Aurores_Boreals.jpg?fit=720%2C405&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/06\/Aurores_Boreals.jpg?fit=720%2C405&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/06\/Aurores_Boreals.jpg?fit=720%2C405&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.cosmoespai.com\/cat\/wp-content\/uploads\/2022\/06\/Aurores_Boreals.jpg?fit=720%2C405&resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/611"}],"collection":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/comments?post=611"}],"version-history":[{"count":2,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/611\/revisions"}],"predecessor-version":[{"id":614,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/posts\/611\/revisions\/614"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media\/613"}],"wp:attachment":[{"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/media?parent=611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/categories?post=611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cosmoespai.com\/cat\/wp-json\/wp\/v2\/tags?post=611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}