Una masa gigante de agua tibia frente a la costa del Pacífico podría rivalizar con 'la gota' de 2014-15

Una gran masa de agua inusualmente cálida amenaza con perturbar el ecosistema marino a lo largo de la costa del Pacífico desde el sur de California hasta Alaska, dijeron el jueves científicos de la Administración Nacional Oceánica y Atmosférica.

Lo llaman la ola de calor marina del Pacífico nororiental de 2019, y si no se disipa pronto, los investigadores dijeron que podría ser tan destructivo como la infame " gota" de agua tibia que causó la proliferación masiva de algas tóxicas a lo largo de la costa y causó estragos en las ballenas , salmón, lobos marinos y otras especies marinas en 2014 y 2015.

"Realmente, solo el tiempo dirá si esta característica persistirá y si rivalizará con el evento pasado en duración e impacto", dijo Andrew Leising , un oceanógrafo de investigación en el Centro de Ciencias Pesqueras del Suroeste de la NOAA en La Jolla.

Las olas de calor marinas se definen como eventos oceánicos en los que la temperatura de la superficie del agua es más cálida que el 90% de las mediciones pasadas durante al menos cinco días seguidos.

La ola de calor marina del Pacífico nororiental de 2019 cubre actualmente alrededor de 4 millones de millas cuadradas de superficie oceánica. El área afectada tiene aproximadamente la forma de un triángulo, con Hawai, Alaska y el sur de California como vértices.

En su apogeo, la burbuja era un poco más grande, cubriendo un área similar que se extendía por aproximadamente 4.8 millones de millas cuadradas.

Comparando la gota de 2014 y la cálida masa de agua de hoy.

Anomalías en la temperatura de la superficie del mar como se observó en septiembre de 2014 y septiembre de 2019.

(Reloj NOAA Coral Reef)

Eso hace que el evento actual sea la segunda ola de calor marino más grande desde que los científicos comenzaron a rastrear el fenómeno en 1981, dijeron investigadores de NOAA.

Los científicos notaron por primera vez la ola de calor marina del Pacífico nororiental en junio. Parece ser causado por un área persistente de baja presión en la atmósfera directamente sobre el agua tibia. Esa baja presión condujo a un debilitamiento general de los vientos oceánicos que normalmente enfrían la superficie del agua y mezclan esa capa superior con agua más fría de las profundidades, dijeron los investigadores.

Sin embargo, los científicos aún no están seguros de qué causó que el sistema de baja presión permaneciera durante tanto tiempo.

“Por lo general, se intensifica y debilita día a día. No se queda allí durante meses a la vez ”, dijo Nate Mantua , un científico investigador del Centro de Ciencias Pesqueras del Suroeste de la NOAA en Santa Cruz. "Puede que no tenga otra causa que no sea el movimiento caótico de la atmósfera".

Los científicos dijeron que no hay evidencia de que el cambio climático sea responsable de la ola de calor marina actual, aunque podría haberla exacerbado.

"El cambio climático causado por el hombre ha contribuido a un calentamiento de 1 grado Celsius en gran parte del Pacífico Norte", dijo Mantua. "Este evento es mucho más grande: al menos 3 grados centígrados en los últimos tres meses".

Los investigadores dijeron que la ola de calor marino de 2019 podría ser incluso más grande que la burbuja, pero también podría romperse.

"Con la gota, el agua estaba muy caliente hasta 200 metros e incluso por debajo de 500 metros", dijo Toby Garfield , director de la división de investigación ambiental en el Centro de Ciencias Pesqueras del Suroeste de la NOAA en La Jolla. "Con este evento en este momento, el calor solo está en los primeros 50 metros, máximo".

Si el sistema de baja presión se mueve y los vientos aumentan, la ola de calor podría simplemente romperse. Sin embargo, si los vientos se mantienen bajos y la masa de agua tibia alcanza la costa, podría tener el mismo impacto que la burbuja, dijeron los científicos.

"Es la duración y la proximidad a la costa que estamos rastreando", dijo Leising.

Por ahora, las aguas frías que brotan de las profundidades del océano han mantenido la masa de agua tibia en alta mar, pero ese fenómeno generalmente se alivia en el otoño. Los científicos dicen que ya lo han visto a lo largo de la costa del estado de Washington.

Tomará unos meses ver si sucede lo mismo más al sur.

Pacífico

Comentarios

Submitted bylongchamp bags (no verificado) on Jue, 20/02/2020 - 01:17

I simply wished to say thanks again. I am not sure the things I would have followed in the absence of the actual strategies shared by you on such industry. This has been a challenging situation in my circumstances, but spending time with a specialized fashion you solved that made me to cry for delight. Now i'm thankful for the guidance and even have high hopes you know what a great job that you are getting into educating men and women through the use of a site. I know that you haven't encountered all of us.
longchamp bags

Submitted byjordan shoes (no verificado) on Vie, 21/02/2020 - 21:26

I would like to show my thanks to this writer for bailing me out of this situation. Just after browsing throughout the world-wide-web and getting proposals which are not productive, I assumed my life was gone. Being alive minus the answers to the difficulties you've resolved by way of your entire guide is a critical case, as well as the kind which may have in a negative way damaged my career if I had not come across the website. Your personal competence and kindness in taking care of every part was very useful. I am not sure what I would've done if I had not discovered such a step like this. I can now look ahead to my future. Thanks so much for your professional and results-oriented guide. I won't be reluctant to refer the blog to anybody who needs and wants direction on this area.
jordan shoes

Submitted bycoach outlet online (no verificado) on Dom, 23/02/2020 - 02:16

I am also writing to let you understand what a magnificent experience my princess developed using your webblog. She came to understand so many issues, which include what it's like to possess a marvelous coaching heart to get many people effortlessly gain knowledge of a variety of problematic subject areas. You really exceeded readers' expected results. I appreciate you for imparting the insightful, dependable, explanatory as well as unique tips about the topic to Emily.
coach outlet online

Submitted byhermes birkin (no verificado) on Lun, 24/02/2020 - 18:41

I am only writing to make you understand what a superb encounter our daughter encountered using your web site. She even learned a wide variety of details, including what it is like to possess a great coaching mindset to let a number of people smoothly grasp various tortuous subject matter. You truly exceeded our own expectations. Thanks for providing these valuable, dependable, informative and also cool guidance on your topic to Janet.
hermes birkin

Submitted bylebron 15 (no verificado) on Mar, 25/02/2020 - 20:29

I as well as my pals appeared to be looking at the excellent secrets and techniques located on the website and then the sudden I got a terrible feeling I never expressed respect to the website owner for those tips. All of the young men are actually consequently stimulated to read through all of them and have now in actuality been taking pleasure in them. Many thanks for genuinely really kind as well as for making a choice on such amazing subject areas most people are really needing to be informed on. My personal honest apologies for not expressing appreciation to earlier.
lebron 15

Submitted byair max (no verificado) on Jue, 27/02/2020 - 11:17

I together with my pals were found to be going through the nice key points from your website and then then I had a horrible suspicion I had not expressed respect to the web blog owner for them. All the young boys were as a consequence thrilled to study all of them and have surely been making the most of these things. Many thanks for being so thoughtful and for considering these kinds of magnificent subject matter most people are really desirous to learn about. My personal honest apologies for not expressing appreciation to earlier.
air max

Submitted bynike shoes (no verificado) on Vie, 28/02/2020 - 16:25

My wife and i were now satisfied when John managed to finish off his investigation with the precious recommendations he acquired in your site. It is now and again perplexing just to find yourself giving freely tips and tricks that many other folks have been selling. And we all fully understand we now have you to thank for this. The illustrations you made, the straightforward website menu, the friendships you make it easier to promote - it's most superb, and it's facilitating our son and us believe that the subject is enjoyable, which is certainly exceptionally important. Many thanks for everything!
nike shoes

Submitted bylebron james shoes (no verificado) on Sáb, 29/02/2020 - 22:04

I intended to draft you the little note so as to give many thanks yet again about the remarkable principles you have shared here. It is simply shockingly open-handed of you in giving easily exactly what a number of us would have made available for an ebook to help with making some cash on their own, especially seeing that you could possibly have tried it if you ever considered necessary. These tactics in addition served to provide a great way to realize that other people have the identical interest just like my very own to see significantly more concerning this condition. I know there are several more pleasurable sessions ahead for many who take a look at your blog.
lebron james shoes

Submitted byvans (no verificado) on Lun, 02/03/2020 - 00:00

Thanks so much for giving everyone an exceptionally remarkable chance to discover important secrets from this website. It really is very fantastic and also packed with a great time for me and my office friends to visit your blog particularly thrice in 7 days to read the latest guides you have. And lastly, I am just at all times happy with the excellent principles served by you. Certain 3 areas on this page are in fact the best I have ever had.
vans

Submitted byskv臎l茅 d臎tsk茅 … (no verificado) on Lun, 02/03/2020 - 19:10

v tren膷铆ne otvoria hokejov煤 akad茅miu pre takmer 50 prv谩kov ombre clothing khaki modern茅 p谩nske tri膷ko d谩mske elastick茅 膷i啪my nad kolen谩 s lakovan媒mi 拧pi膷kami v 膷iernej farbe burberry london check crossbody bag in black for men lyst dstreet sexy 膷ierna bundy a kab谩ty p谩nska jesenn谩 bunda d啪铆nsov茅 leg铆ny farba dirty denim d谩mska obuv a.s.98 casa comprare italia
skv臎l茅 d臎tsk茅 dupa膷ky idexe outlet

Submitted byfitflops sale … (no verificado) on Mar, 03/03/2020 - 18:24

Thank you for all of your work on this web page. Kim takes pleasure in managing research and it's really obvious why. We know all about the dynamic means you convey both useful and interesting tips and tricks on this website and encourage response from visitors on that subject plus my child is in fact starting to learn so much. Take advantage of the remaining portion of the new year. You are doing a fantastic job.
fitflops sale clearance

Submitted byoutlet golden goose (no verificado) on Mié, 04/03/2020 - 19:08

I enjoy you because of all your valuable hard work on this web page. My niece enjoys going through research and it's really easy to see why. Many of us learn all concerning the dynamic manner you render valuable guides on this website and therefore cause participation from others about this concern plus our princess is without a doubt being taught so much. Enjoy the rest of the new year. You are always doing a very good job.
outlet golden goose

Submitted byfila online shop (no verificado) on Vie, 06/03/2020 - 01:08

I'm also writing to let you understand of the really good experience my cousin's princess went through reading your blog. She picked up some issues, not to mention what it is like to possess an excellent giving mood to let the rest completely gain knowledge of a variety of advanced things. You truly surpassed visitors' expected results. I appreciate you for providing such valuable, trustworthy, educational and in addition fun guidance on the topic to Jane.
fila online shop

Submitted byair max (no verificado) on Sáb, 07/03/2020 - 08:08

I wish to show my thanks to this writer for rescuing me from this trouble. Just after searching through the the net and obtaining concepts which are not beneficial, I believed my life was over. Living without the strategies to the difficulties you have solved all through your good article content is a serious case, as well as the kind which could have in a negative way damaged my career if I hadn't come across the blog. Your primary capability and kindness in dealing with all areas was tremendous. I don't know what I would've done if I hadn't discovered such a solution like this. It's possible to at this moment look ahead to my future. Thank you so much for your skilled and amazing guide. I will not think twice to endorse your web blog to anybody who should get direction on this situation.
air max

Submitted bychrome hearts online (no verificado) on Dom, 08/03/2020 - 18:20

I must voice my love for your kind-heartedness supporting visitors who have the need for help on your concept. Your special commitment to getting the solution all through was particularly beneficial and has helped women just like me to get to their objectives. Your amazing warm and friendly guideline means this much a person like me and somewhat more to my peers. With thanks; from everyone of us.
chrome hearts online

Submitted byoff white hoodie (no verificado) on Lun, 09/03/2020 - 20:23

I have to express my thanks to you for rescuing me from this particular setting. After surfing around throughout the internet and obtaining strategies that were not beneficial, I believed my life was done. Living minus the approaches to the problems you've solved by way of your site is a serious case, and ones which might have adversely affected my entire career if I hadn't noticed your site. Your good knowledge and kindness in playing with the whole thing was invaluable. I don't know what I would've done if I hadn't come across such a thing like this. I can at this time look forward to my future. Thanks very much for the reliable and results-oriented guide. I will not think twice to refer the blog to anyone who needs to have recommendations on this subject.
off white hoodie

Submitted byair jordan (no verificado) on Mié, 11/03/2020 - 23:47

I must show my appreciation to the writer for bailing me out of this particular dilemma. Because of scouting through the the net and coming across methods which are not helpful, I assumed my life was done. Existing minus the approaches to the problems you have solved by means of this short post is a critical case, and those that could have negatively affected my entire career if I hadn't discovered the blog. Your own personal skills and kindness in controlling all areas was excellent. I don't know what I would've done if I hadn't come upon such a thing like this. It's possible to at this moment look ahead to my future. Thanks very much for your skilled and result oriented guide. I will not think twice to refer the sites to any individual who ought to have support on this area.
air jordan

Añadir nuevo comentario

Restricted HTML

  • Etiquetas HTML permitidas: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd> <h2 id> <h3 id> <h4 id> <h5 id> <h6 id>
  • Saltos automáticos de líneas y de párrafos.
  • Las direcciones de correos electrónicos y páginas web se convierten en enlaces automáticamente.