{"id":137293,"date":"2022-12-14T08:51:41","date_gmt":"2022-12-14T13:51:41","guid":{"rendered":"https:\/\/sportseco.com\/?p=137293"},"modified":"2022-12-14T08:51:41","modified_gmt":"2022-12-14T13:51:41","slug":"el-ultimo-satelite-internacional-del-agua-incluye-un-golpe-de-ingenieria","status":"publish","type":"post","link":"https:\/\/sportseco.com\/?p=137293","title":{"rendered":"El \u00faltimo sat\u00e9lite internacional del agua incluye un golpe de ingenier\u00eda"},"content":{"rendered":"\n

Programado para su lanzamiento el jueves 15 de diciembre, el sat\u00e9lite Surface Water and Ocean Topography (SWOT) promete proporcionar una contabilidad extraordinaria del agua en gran parte de la superficie de la Tierra. Sus mediciones del agua dulce y del oc\u00e9ano ayudar\u00e1n a los investigadores a abordar algunas de las cuestiones clim\u00e1ticas m\u00e1s apremiantes de nuestro tiempo y ayudar\u00e1n a las comunidades a prepararse para un mundo que se calienta. Hacer esto posible es un instrumento cient\u00edfico llamado interfer\u00f3metro de radar de banda Ka (KaRIn).<\/p>\n\n\n\n

A\u00f1os en desarrollo, el instrumento ha sido dise\u00f1ado para capturar mediciones muy precisas de la altura del agua en los cuerpos de agua dulce de la Tierra y el oc\u00e9ano. KaRIn medir\u00e1 la altura del agua en el oc\u00e9ano, \u00abviendo\u00bb caracter\u00edsticas como corrientes y remolinos que tienen menos de 20 kil\u00f3metros (13 millas) de ancho, hasta 10 veces m\u00e1s peque\u00f1os que los detectables con otros sat\u00e9lites de nivel del mar. Tambi\u00e9n recopilar\u00e1 datos sobre lagos y embalses de m\u00e1s de 62 500 metros cuadrados (15 acres) y r\u00edos de m\u00e1s de 100 metros (330 pies) de ancho.<\/p>\n\n\n\n

\u201cPara el agua dulce, este ser\u00e1 un salto cu\u00e1ntico en t\u00e9rminos de nuestro conocimiento\u201d, dijo Daniel Esteban-Fernandez, gerente de instrumentos KaRIn en el Laboratorio de Propulsi\u00f3n a Chorro de la NASA en el sur de California. Por ejemplo, los investigadores actualmente tienen buenos datos sobre solo unos pocos miles de lagos en todo el mundo; SWOT aumentar\u00e1 ese n\u00famero a por lo menos un mill\u00f3n.<\/p>\n\n\n\n

El instrumento KaRIn de vanguardia se encuentra en el coraz\u00f3n de esta misi\u00f3n internacional, la \u00faltima de una larga colaboraci\u00f3n entre la NASA y la agencia espacial francesa Centre National d’\u00c9tudes Spatiales (CNES), con contribuciones de la Agencia Espacial Canadiense (CSA) y la Agencia Espacial del Reino Unido.<\/p>\n\n\n\n

Una imagen m\u00e1s grande<\/p>\n\n\n\n

Hasta ahora, los investigadores que buscaban estudiar un cuerpo de agua depend\u00edan de instrumentos que miden en lugares espec\u00edficos, como medidores en r\u00edos o el oc\u00e9ano, o que est\u00e1n basados \u200b\u200ben el espacio, recopilando datos a lo largo de estrechas \u00abpistas\u00bb de la Tierra que pueden ver desde la \u00f3rbita. Luego, los investigadores tienen que extrapolar si quieren tener una idea m\u00e1s amplia de lo que est\u00e1 sucediendo en un cuerpo de agua.<\/p>\n\n\n\n

KaRIn es diferente. El instrumento de radar utiliza la frecuencia de banda Ka en el extremo de microondas del espectro electromagn\u00e9tico para penetrar la capa de nubes y la oscuridad de la noche. Como resultado, puede tomar medidas independientemente del clima o la hora del d\u00eda. La configuraci\u00f3n del instrumento consta de una antena en cada extremo de un brazo de 33 pies (10 metros) de largo. Al hacer rebotar pulsos de radar en la superficie del agua y recibir la se\u00f1al de retorno con ambas antenas, KaRIn recopilar\u00e1 datos a lo largo de una franja de 50 kil\u00f3metros (30 millas) de ancho a cada lado del sat\u00e9lite. \u00abCon los datos de KaRIn, podremos ver realmente lo que est\u00e1 sucediendo, en lugar de depender de estas extrapolaciones\u00bb, dijo Tamlin Pavelsky, l\u00edder de ciencia de agua dulce de la NASA para FODA, con sede en la Universidad de Carolina del Norte, Chapel Hill.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Latest International Water Satellite Packs an Engineering Punch<\/h1>\n\n\n\n
\"Illustration<\/a><\/figure>\n\n\n\n

This illustration shows the Surface Water and Ocean Topography (SWOT) satellite in orbit with sunlight glinting off one array of solar panels, as well as both KaRIn instrument antennas deployed.<\/p>\n\n\n\n

Credits: CNES<\/p>\n\n\n\n

<\/a><\/p>\n\n\n\n

Meet the scientific heart of the Surface Water and Ocean Topography mission, which will see Earth\u2019s water in higher definition than ever before.<\/em><\/p>\n\n\n\n

\n

SWOT media reel<\/strong><\/a><\/p>\n\n\n\n

SWOT press kit<\/strong><\/a><\/p>\n\n\n\n

SWOT Teachable Moment<\/strong><\/a><\/p>\n\n\n\n

Play SWOT launch bingo<\/strong><\/a><\/p>\n<\/blockquote>\n\n\n\n

Set for a Thursday, Dec. 15 launch, the Surface Water and Ocean Topography (SWOT<\/a>) satellite promises to provide an extraordinary accounting of water over much of Earth\u2019s surface. Its measurements of fresh water<\/a> and the ocean<\/a> will help researchers address some of the most pressing climate questions of our time and help communities prepare for a warming world. Making this possible is a scientific instrument called the Ka-band Radar Interferometer (KaRIn).<\/p>\n\n\n\n

Years in development, the instrument has been designed to capture very precise measurements of the height of water in Earth\u2019s freshwater bodies and the ocean. KaRIn will measure the height of water in the ocean, \u201cseeing\u201d features like currents and eddies that are less than 13 miles (20 kilometers) across \u2013 up to 10 times smaller than those detectable with other sea level satellites. It will also collect data on lakes and reservoirs larger than 15 acres (62,500 square meters) and rivers wider than 330 feet (100 meters) across.<\/p>\n\n\n\n

\"Members<\/a><\/figure>\n\n\n\n

Members of the international Surface Water and Ocean Topography (SWOT) mission test one of the antennas for the Ka-band Radar Interferometer (KaRIn) instrument in a clean room at NASA\u2019s Jet Propulsion Laboratory in Southern California.<\/p>\n\n\n\n

Credits: NASA\/JPL-Caltech<\/p>\n\n\n\n

<\/a><\/p>\n\n\n\n

\u201cFor freshwater, this will be a quantum leap in terms of our knowledge,\u201d said Daniel Esteban-Fernandez, KaRIn instrument manager at NASA\u2019s Jet Propulsion Laboratory in Southern California. For example, researchers currently have good data on only a few thousand lakes around the world; SWOT will increase that number to at least a million.<\/p>\n\n\n\n

The cutting-edge KaRIn instrument lies at the heart of this international mission, the latest in a longstanding collaboration between NASA and the French space agency Centre National d\u2019\u00c9tudes Spatiales (CNES), with contributions from the Canadian Space Agency (CSA) and the UK Space Agency.<\/p>\n\n\n\n

A Bigger Picture<\/strong><\/p>\n\n\n\n

Until now, researchers looking to study a body of water relied on instruments that measure at specific locations \u2013 like gauges in rivers or the ocean \u2013 or that are space-based, gathering data along narrow \u201ctracks\u201d of Earth they can see from orbit. Researchers then have to extrapolate if they want a broader idea of what\u2019s happening in a water body.<\/p>\n\n\n\n

KaRIn is different. The radar instrument uses the Ka-band frequency at the microwave end of the\u00a0electromagnetic spectrum<\/a>\u00a0to penetrate cloud cover and the dark of night. As a result, it can take measurements regardless of weather or time of day. The instrument configuration consists of one antenna at each end of a boom that\u2019s 33 feet (10 meters) long. By bouncing radar pulses off the water\u2019s surface and receiving the return signal with both antennas, KaRIn will collect data along a swath 30 miles (50 kilometers) wide on either side of the satellite. \u201cWith KaRIn data, we\u2019ll be able to actually see what\u2019s happening, rather than relying on these extrapolations,\u201d said Tamlin Pavelsky, the NASA freshwater science lead for SWOT, based at the University of North Carolina, Chapel Hill.<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

nasa.gov<\/p>\n","protected":false},"excerpt":{"rendered":"

Programado para su lanzamiento el jueves 15 de diciembre, el sat\u00e9lite Surface Water and Ocean Topography (SWOT) promete proporcionar una contabilidad extraordinaria del agua en gran parte de la superficie de la Tierra. Sus mediciones del agua dulce y del oc\u00e9ano ayudar\u00e1n a los investigadores a abordar algunas de las cuestiones clim\u00e1ticas m\u00e1s apremiantes de […]<\/p>\n","protected":false},"author":1,"featured_media":137294,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[6],"tags":[],"class_list":["post-137293","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ecologia"],"acf":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/sportseco.com\/wp-content\/uploads\/2022\/12\/1-pia25595-swot-1041.jpeg?fit=985%2C566&ssl=1","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sportseco.com\/index.php?rest_route=\/wp\/v2\/posts\/137293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sportseco.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sportseco.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sportseco.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sportseco.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=137293"}],"version-history":[{"count":1,"href":"https:\/\/sportseco.com\/index.php?rest_route=\/wp\/v2\/posts\/137293\/revisions"}],"predecessor-version":[{"id":137295,"href":"https:\/\/sportseco.com\/index.php?rest_route=\/wp\/v2\/posts\/137293\/revisions\/137295"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sportseco.com\/index.php?rest_route=\/wp\/v2\/media\/137294"}],"wp:attachment":[{"href":"https:\/\/sportseco.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=137293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sportseco.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=137293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sportseco.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=137293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}