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«Una montaña rusa en un lavadero de autos»: Por qué los científicos se enfrentan al huracán Beryl

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El huracán Beryl, que devastó las islas de Granada el martes y ahora se dirige hacia Jamaica y las Islas Caimán, ha batido récords como el primer huracán en alcanzar intensidad de categoría 4 y 5 en la cuenca del Atlántico.

El lunes se registraron velocidades de viento de al menos 257 km/h .

«Hay tantos superlativos para describir el huracán Beryl dada la época del año, la ubicación y la fuerza», dijo Jonathan Zawislak, meteorólogo y director de vuelo de la Administración Nacional Oceánica y Atmosférica.

Zawislak es un cazador de huracanes, título que ostentan entre 30 y 40 científicos, analizadores de datos y pilotos con base en Lakeland, Florida, que vuelan hacia los huracanes en tres aviones apodados Gonzo, Kermit y Miss Piggy.

Tanto Kermit como Miss Piggy están equipados con un radar Doppler en el vientre y la cola que los científicos utilizan para crear imágenes en 3D de la tormenta.

Durante los últimos tres días, Zawislak y su equipo despegaron en Kermit desde St. Croix, una de las Islas Vírgenes de los Estados Unidos, y navegaron a través de la pared del ojo del huracán Beryl.

En una tormenta de categoría 4 o 5 como Beryl, la pared del ojo (el anillo de tormentas, lluvias intensas y vientos peligrosos que rodea el centro de la tormenta) es ruidosa y agitada.

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Los árboles se doblan bajo los fuertes vientos del huracán Beryl en Montego Bay, Jamaica, el 3 de julio de 2024 en esta imagen fija obtenida de un video de las redes sociales. «@curtiskitchen» vía X/via REUTERS

“Es como estar en una montaña rusa en un lavadero de autos, excepto que no sabes cuándo ocurrirán los altibajos, o cuál será el próximo giro”, dijo Zawislak el martes mientras se preparaba para su tercer vuelo de reconocimiento en Beryl.

Pero el ojo de la tormenta está en calma.

Durante los vuelos diurnos, Zawislak puede mirar por su ventana de burbuja desde detrás de la cabina y ver un tranquilo cuenco de nubes con un cielo azul y despejado arriba.

Su trabajo es navegar a través del caos, encontrar el camino para que Kermit vuele entre 2400 y 3000 metros mientras mantiene una velocidad de exactamente 210 nudos y vuela el avión directamente contra el viento para no se empujados.

Jonathan Shannon, portavoz del Centro de Operaciones de Aeronaves de la NOAA, dijo que el objetivo de estos vuelos, especialmente con huracanes que cambian rápidamente, era proporcionar mejores datos para prepararse mejor para las emergencias.

Desde el primer vuelo de Zawislak el domingo, el huracán Beryl experimentó una rápida intensificación, lo que significa que la velocidad de sus vientos ha aumentado 35 mph o más en un período de 24 horas.

Parte del cambio provino de un ciclo de reemplazo de la pared del ojo, o lo que Zawislak llamó el “efecto patinador sobre hielo”:

la tormenta se contrae como un patinador artístico que aprieta los brazos mientras gira.

Extrayendo energía del agua cálida del océano, la tormenta reemplaza el ojo viejo por uno nuevo y reorganiza su pared exterior.

A medida que la atmósfera de la Tierra se calienta, más tormentas experimentan este tipo de intensificación rápida.

Un estudio reciente demostró que ahora es dos veces más probable una rápida intensificación de los huracanes en el Atlántico, al menos en parte debido al cambio climático causado por el hombre impulsado por la quema de combustibles fósiles.

Mal comienzo

Beryl es un comienzo desastroso para lo que Hosmay López, oceanógrafo del Laboratorio Oceanográfico y Meteorológico del Atlántico de la NOAA, dijo que era el pronóstico “más optimista” que la agencia haya hecho jamás para una temporada de huracanes en el Atlántico.

La NOAA predice una temporada de huracanes superior a lo normal, con cuatro a siete tormentas importantes con vientos superiores a 111 mph.

El pronóstico se basa en el cambio en El Niño-Oscilación del Sur, un patrón climático natural vinculado a condiciones más cálidas en el Océano Pacífico tropical, que está pasando de un estado neutral a La Niña.

Las condiciones de calma producidas por La Niña, combinadas con temperaturas oceánicas anormalmente cálidas, aumentan la probabilidad de formación de huracanes en el Atlántico.

Efecto

Mientras viajan, los huracanes agitan la superficie del océano.

Agitan agua más fría desde las profundidades de la superficie, lo que puede diluir la energía de la tormenta, como revolver una taza de café para enfriarla.

Pero junto con las temperaturas superficiales del mar excepcionalmente cálidas que han batido récords durante más de un año, las temperaturas también son más altas de lo normal a mayores profundidades.

“En este caso la taza de café es muy alta, por lo que es muy difícil mezclar agua fría desde abajo, aunque haya vientos fuertes”, dijo López.

Las temperaturas más cálidas a mayor profundidad le dan a la tormenta aún más energía para extraer del océano, dijo.

La temporada de huracanes, que dura del 1 de junio al 30 de noviembre, históricamente ha sido tranquila en junio y julio antes de recuperarse en agosto.

El huracán Beryl superó al anterior récord de tormenta de categoría 5 más temprana, el huracán Emily en 2005, por aproximadamente dos semanas.

c.2024 The New York Times Company

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As the Dalai Lama turns 89, exiled Tibetans fear a future without him

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In a monastery beneath snow-capped mountains in northern India, the Buddhist monk entrusted with protecting the Dalai Lama and foretelling his people’s future is concerned.

The Dalai Lama turned 89 on Saturday, and China insists it will choose his successor as Tibet’s chief spiritual leader. That has the Medium of Tibet’s Chief State Oracle contemplating what might come next.

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«His Holiness is the fourteenth Dalai Lama, then there will be a fifteenth, sixteenth, seventeenth,» the medium, known as the Nechung, said. «In countries, leaders change, and then that story is over. But in Tibet it works differently.»

Tibetan Buddhists believe that learned monastics are reincarnated after death as newborns. The Dalai Lama, who is currently recuperating in the United States from a medical procedure, has said he will clarify questions about succession — including if and where he will be reincarnated — around his ninetieth birthday. As part of a reincarnation identification process, the medium will enter a trance to consult the oracle.

The incumbent Dalai Lama is a charismatic figure who popularized Buddhism internationally and won a Nobel Peace Prize in 1989 for keeping alive the Tibetan cause in exile. Beijing sees him as a dangerous separatist, though he has embraced what he calls a «Middle Way» of peacefully seeking genuine autonomy and religious freedom within China.

The Dalai Lama turned 89 years old on Saturday. (AFP via Getty Images / File)

Any successor will be inexperienced and unknown on the global stage. That has sparked concerns about whether the movement will lose momentum or grow more radical amid heightened tensions between Beijing and Washington, long a source of bipartisan support for the Central Tibetan Administration, Tibet’s government-in-exile.

The CTA and its partners in the West as well as India, which has hosted the Dalai Lama in the Himalayan foothills for more than six decades, are preparing for a future without his influential presence.

President Joe Biden is expected to soon sign a bill that requires the State Department to counter what it calls Chinese «disinformation» that Tibet, which was annexed by the People’s Republic of China in 1951, has been part of China since ancient times.

«China wants recognition that Tibet has been part of China … throughout history, and this bill is suggesting that it would be relatively easy for Tibet supporters to get a western government to refuse to give recognition for such an extensive claim,» said Tibet specialist Robert Barnett of London’s School of Oriental and African Studies.

U.S. lawmakers, including former House speaker Nancy Pelosi, D-Calif., visited the Dalai Lama last month to celebrate Congress passing the legislation, which Sikyong Penpa Tsering, who heads the CTA, called a «breakthrough.»

The bill is part of a strategic shift away from emphasizing Chinese rights violations such as forced assimilation, the Sikyong, or political leader, told Reuters. Since 2021, CTA has lobbied two dozen countries, including the U.S., to publicly undermine Beijing’s narrative that Tibet has always been part of China, he said.

With U.S. weight behind this strategy, the exiles hope to push China to the negotiating table, he said. «If every country keeps saying that Tibet is part of the People’s Republic of China, then where is the reason for China to come and talk to us?»

The Chinese foreign ministry said in response to Reuters’ questions that it would be open to discussions with the Dalai Lama about his «personal future» if he «truly gives up his position of splitting the motherland» and recognised Tibet as an unalienable part of China.

DALAI-LAMA

Tibetans participate in a protest march held to mark the 65th anniversary of the Tibetan uprising against Chinese rule, in the northern hill town of Dharamsala, India, March 10, 2024. (Reuters / Adnan Abidi / File)

Beijing, which has not held official talks with the Dalai Lama’s representatives since 2010, has also urged Biden not to sign the bill.

The office of the Dalai Lama, who has in recent years apologized for remarks he made about women and to a young child, referred an interview request to the Sikyong.

Succession questions

Most historians say Tibet was assimilated into the Mongol Empire during the 13th-14th century Yuan dynasty, which also covered large parts of present day China. Beijing says that it established its sovereign claim, though scholars believe the relationship varied greatly over the centuries and remote Tibet largely governed itself for much of the time.

The People’s Liberation Army marched into Tibet in 1950 and announced its «peaceful liberation». After a failed uprising against Chinese rule in 1959, a young Dalai Lama fled into exile in India.

In 1995, atheist China and the Dalai Lama separately identified two boys as the Panchen Lama, the second-most-important Tibetan Buddhist leader. The Dalai Lama’s pick was taken away by Chinese authorities and has not been seen since.

Many Buddhists consider Beijing’s choice illegitimate, though most expect a similar parallel selection for the next Dalai Lama given the Chinese government’s stance that he must reincarnate, and it must approve the successor.

India-US-Dalai-Lama

In this photo shared by the Office of the Dalai Lama, U.S. Rep. Michael McCaul, R-Texas, left, is greeted by Tibetan spiritual leader the Dalai Lama, at the Tibetan leader’s residence in Dharamshala, India, June 19, 2024.  (Tenzin Choejor/Office of the Dalai Lama via AP)

Chinese authorities have «tried to insert themselves into the succession of the Dalai Lama, but we will not let that happen,» said U.S. Rep. Michael McCaul, R-Texas, Republican chairman of the House Foreign Affairs Committee during his Dharamsala visit last month.

India, whose troops clashed with China near the Tibetan plateau in 2022, has been less vocal about its position on succession.

«The U.S. … does not have to worry about border incursions as India does,» said Donald Camp, a former top South Asia official on the U.S. National Security Council.

But as home to tens of thousands of Tibetans and an ascendant voice on the global stage, Delhi will be pulled into the fray, observers of Indian diplomacy say. Hawkish commentators have already called on Prime Minister Narendra Modi to meet with the Dalai Lama as a way of pressuring China.

Delhi’s Ministry of External Affairs declined to comment on the succession but its former ambassador to China, Ashok Kantha, said India would not be «comfortable with China trying to control that process.»

«Privately, we have told China … that for them the best option is engaging with the Dalai Lama and his representatives,» said Kantha. «Post-fourteenth Dalai Lama we don’t know what will happen.»

The respect that the Dalai Lama commands among Tibetan exiles has kept in check frustrations and a formal push for independence, though it isn’t clear if that balance will be maintained following his death.

Tibetan Youth Congress general secretary Sonam Tsering said his advocacy group respected the Middle Way but, like many other young Tibetans, it wanted full independence.

For now, Tibetans are focused on supporting the Dalai Lama in fulfilling his desire to return to his homeland before his death, he said.

But if the wish «is not fulfilled, then the emotional outburst, the emotional challenges they are going through, it’s very difficult to think of,» he said.

The Sikyong said CTA’s new emphasis on challenging China’s narrative united pro-independence Tibetans with those pursuing the Middle Way, as Tibet’s historical status was a point of common agreement.

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On Saturday, tens of thousands of Buddhists and well-wishers around the world will gather to celebrate and pray for the long life of a leader who for them represents the strongest hope of an eventual return to Tibet.

But time for both the Dalai Lama and his people is starting to run out.


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