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Hurricane Measurement Scale, Are we getting it right?

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By Dana Malcolm 

Staff Writer 

 

 

May 5, 2023 – ‘A Category 5 is on the way.’ It’s a statement that would cause immediate concern in even the youngest of residents in the Atlantic Basin; so ingrained is the Saffir-Simpson scale in our understanding of hurricanes, but some say with the effects of climate change at our door it’s time for a change.

The Saffir-Simpson scale is the internationally accepted method of grading the intensity/strength of hurricanes created in 1973. The scale uses wind speed to grade the strength of hurricanes, a classification some say is outdated because it excludes other deadly factors and characteristics of horrible storms.

The only change that the National Oceanic and Atmospheric Administration (NOAA), has made in over a decade is a slight change in the wind speed of categories three, four, and five to remedy mix-ups when converting the wind speeds to miles or kilometres per hour.

Citing storm surges (which cause flooding and drowning deaths), rain, the discrepancy between hurricane wind speed at sea and on land, the sea level pressure of storms and other factors, scientists say it’s time to upgrade the way we think about the storms and their intensity.

Phil Klotzbach, Meteorologist at Colorado State University in his research on storms in the US says, pressure is more skillful than wind at predicting normalised hurricane damage and intensity while simultaneously being easier to measure.

Pressure is partially responsible for storm surge.

Rain and Storm surge are important factors for low lying island nations, especially those bisected by water like the Turks and Caicos and The Bahamas.  A high enough storm surge or enough flooding can be deadly, cutting off evacuation routes before storms and emergency personnel after; trapping people in their homes or pulling them out to sea.

NOAA lists storm surge as the factor that causes the most deaths in hurricanes, but the Saffir-Simpson Scale does not currently measure this.

In 2018, two writers for Yale School of the Environment Rob Young and Katie Mcdowell Peek agreed that wind alone was not enough to focus on as a predictor of hurricane strength. They cite hurricanes Florence (cat 1), Katrina (cat 3), and Harvey (cat 4), and Tropical Storm Sandy, devastating storms in the US with high death tolls driven not by wind but by the dozens of inches of rainfall and massive storm surges they brought.

“All of these storms have one thing in common: The hazards they unleashed were not adequately described by the traditional hurricane classification system,” they argue.

These researchers outright call for the Saffir-Simpson Scale to be done away with and a new system created.

This is not to say that wind has no bearing on a hurricane’s ferocity or that it is to be overlooked; rather the researchers say it should take a backseat to other risk factors. Under Klotzbach’s system pressure would be the defining factor for categorising hurricanes rather than wind speed.

“The real danger from all of these systems is water, not wind— water can completely reconfigure a barrier island shoreline by opening new inlets, knocking down dunes, and pushing entire islands landward. The impact of wind can’t compare,” Young and Peak argue.

It is especially important to consider and broadcast this information when talking about hurricanes, they say, as ocean temperatures rise, ice caps melt and sea levels get higher.

Bahamas News

RBDF Operation Strengthens Maritime Security Amidst Regional Turmoil

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Defence Headquarters, 17 MAR. ’24: A joint operation between the Royal Bahamas Defence Force (RBDF) and the Royal Bahamas Police Force (RBPF) led to the apprehension of 50 Haitian migrants approximately 5 nautical miles west of Bell Island on Saturday, March 16th.

The operation was initiated following the initial sighting of a sailing vessel, believed to be of Haitian origin, 8 miles southwest of Staniel Cay in the Exumas. RBDF swiftly deployed air and surface assets stationed at Matthew Town Inagua, supported by Police officials in Staniel Cay who verified the sighting. The migrants were intercepted by RBDF personnel stationed at the Land and Sea Park, Wardrick Wells Exuma, and subsequently handed over to the safe boat crew. They are currently under apprehension pending further investigation, with the imminent arrival of HMBS Rolly Gray.

In response to the ongoing instability in Haiti, Commodore Raymond King has announced the implementation of a strategic blockade in the southern Bahamas. This initiative includes the deployment of six surface vessels, one aircraft, and 120 highly skilled RBDF personnel. Patrol operations will be concentrated in critical areas such as the northern coast of Haiti, the Old Bahama Channel, and the Windward Passage, with the aim of deterring unauthorized entry attempts and preserving maritime security in the region.

The effectiveness of these decisive measures is evident, with recent apprehensions totaling 247 individuals by the RBDF. Commodore Raymond E. King emphasizes the commitment to bolstering maritime security through collaborative efforts with regional partners and local law enforcement agencies.

The Royal Bahamas Defence Force remains committed to safeguarding the nation’s borders and territorial integrity, working collaboratively with regional partners.

(For further information please contact the RBDF Public Relations Department or visit our website: www.rbdf.gov.bs, follow us on Facebook, Twitter and view our Youtube channel)

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CIBC CARIBBEAN and Bahamas Girl Guides Association host inaugural Delaney Leadership Seminar

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Nassau, Bahamas, February 28, 2024 – Enthusiastic girl guides, ranger guides, and girls representing schools across The Bahamas recently gathered at the first ever Delaney Leadership Seminar.

The seminar, named in honor of CIBC FirstCaribbean’s (now CIBC Caribbean) first female chief executive officer, Ms. Colette Delaney, empowered the next generation of female leaders through focused sessions on leadership development, cultivating a leadership mindset, and the importance of building strong, supportive friendships. 

The event featured a series of team building exercises, interactive discussions, and a keynote address by Dr. Jacqui Bend, CIBC Caribbean’s Managing Director. Dr. Bend shared insights on the essence of leadership, guiding principles, and emphasized the role of young women in shaping a vibrant future for The Bahamas and beyond.

“It was a privilege to witness the incredible energy and budding potential of the young leaders that participated. Leadership is not just about guiding others; it’s about inspiring action and fostering an environment where everyone can thrive. The Delaney Leadership Seminar is a testament to CIBC Caribbean’s commitment to nurturing young, bright minds and equipping them with the skills and confidence needed to lead with purpose and passion,” said Dr. Bend.

Held under the theme, Our World, Our Bahamas, Our Thriving Future, the seminar underscored the importance of lifelong learning, perseverance, empathy, and collaboration in leadership, among other guiding principles. Dr. Bend highlighted the strides already being made by the participants and encouraged them to continue exploring their potential and envisioning their roles in creating positive change within their communities and the wider world.

Delina Rolle, a tenth-grade participant and aspiring lawyer from Preston H. Albury High School in Eleuthera, shared, “This seminar has been a life-changing experience for me. Hearing Dr. Bend’s success story and her tips were inspiring for me as a young girl trying to be a leader. I am happy I was selected by my school’s administration to attend and connect with so many amazing girls who share my dreams of making a difference.”

The Delaney Leadership Seminar has set a new benchmark for youth leadership programs in The Bahamas. The event concluded with a commitment from both CIBC Caribbean and the Bahamas Girl Guides Association (BGGA) to continue their support for youth leadership initiatives. 

In 2022, CIBC FirstCaribbean donated to the BGGA to assist in completing the interior of its $1.5 million, West Bay Street headquarters, which will feature meeting rooms, office spaces, training areas, accommodations for girl guides visiting from other countries and other essential working areas.

It was at that time that Dr. Bend affirmed the bank’s commitment to support organizations that mirror the bank’s promise to assist women and girls in the communities it serves. Prior to that, the bank donated several native trees to BGGA, which were planted at its campsite, Camp Discovery, in partnership with the Ministry of Environment and Housing’s Forestry Unit.

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BAMSI BRINGS IN PUREBRED ANIMALS TO DIVERSIFY NATIVE HERD

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Nassau, Bahamas, March 6th, 2024 – IN A STRATEGIC MOVE to boost the genetic quality of livestock available in the country, the Bahamas Agriculture and Marine Science Institute (BAMSI) recently collaborated with the Department of Agriculture to acquire purebred small ruminants (sheep and goats).  The initiative is part of BAMSI’s broader breeding programme to inject quality genetics into the local livestock population.  Shedding light on the project’s objectives and timeline, Dr Mark Butler, the Institute’s Veterinarian, said the animals promise a more sustainable and prosperous future for the local farming community.

The newly acquired stock of animals, Dorper and Barbados Black Belly sheep and Boer and Savanna goats, are integral to the upcoming artificial insemination programme which BAMSI is set to commence later this year.  

“The new animals will be used in one arm of our breeding programme, facilitating natural mating to ensure genetic diversity and quality,” Dr Butler explained.  “The goal is to increase the herd and improve genetic traits, and we anticipate over 85 per cent success in terms of animals giving birth—a crucial marker for the programme’s success.”

Currently, 30 sheep and 30 goats are part of the breeding programme, with the expectation of 50 to 60 live births by the end of the year.  The focus is not only on increasing the herd size but also on ensuring the genetic quality of the offspring.

“We want offspring that exhibit high genetic quality.  Purebred Dorper sheep and Boer goats show better growth rates and are ideal for farmers looking for efficient weight gain at market age,” Dr Butler emphasized. 

Ayrett Lightbourne, BAMSI’s Farm Manager, addressed why BAMSI chose these specific breeds, and their potential impact on the local livestock industry.  “The Dorper Sheep, for example, gains weight faster than native breeds, offering a different market for lean meat consumers.  Similarly, the Boer and Savanna goats, being larger and more meat-producing, contribute significantly to improving meat quality in the country.”

The imported purebred animals will create a nucleus herd at BAMSI’s farm in Andros to upgrade the existing livestock population.  Their offspring will breed with the native flock, and some of the offspring will be distributed to local farmers.  This collaborative effort between BAMSI and the Ministry of Agriculture aims to enhance the genetic potential of the native flocks, ultimately benefiting farmers and consumers alike.

The BAMSI herd, comprising 190 animals, is expected to grow as the breeding programme progresses.  The next phase involves artificial insemination, marking a crucial step towards achieving BAMSI’s goal of increasing the quantity and improving the genetic quality of Bahamian livestock.  The institute’s dedication to scientific advancements in agriculture promises a more sustainable and prosperous future for the local farming community.

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