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Jérôme OLLIER

US now says it 'engaged' 2 Iranian drones, not 1 - @AP - 0 views

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    US now says it 'engaged' 2 Iranian drones, not 1.
Jérôme OLLIER

Active Whale Avoidance by Large Ships: Components and Constraints of a Complementary Ap... - 0 views

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    The recurrence of lethal ship-whale collisions ('ship strikes') has prompted management entities across the globe to seek effective ways for reducing collision risk. Here we describe 'active whale avoidance' defined as a mariner making operational decisions to reduce the chance of a collision with a sighted whale. We generated a conceptual model of active whale avoidance and, as a proof of concept, apply data to the model based on observations of humpback whales surfacing in the proximity of large cruise ships, and simulations run in a full-mission bridge simulator and commonly used pilotage software. Application of the model demonstrated that (1) the opportunities for detecting a surfacing whale are often limited and temporary, (2) the cumulative probability of detecting one of the available 'cues' of whale's presence (and direction of travel) decreases with increased ship-to-whale distances, and (3) following detection time delays occur related to avoidance operations. These delays were attributed to the mariner evaluating competing risks (e.g., risk of whale collision vs. risk to human life, the ship, or other aspects of the marine environment), deciding upon an appropriate avoidance action, and achieving a new operational state by the ship once a maneuver is commanded. We thus identify several options for enhancing whale avoidance including training Lookouts to focus search efforts on a 'Cone of Concern,' defined here as the area forward of the ship where whales are at risk of collision based on the whale and ship's transit/swimming speed and direction of travel. Standardizing protocols for rapid communication of relevant sighting information among bridge team members can also increase avoidance by sharing information on the whale that is of sufficient quality to be actionable. We also found that, for marine pilots in Alaska, a slight change in course tends to be preferable to slowing the ship in response to a single sighted whale, owing, in part, to the substan
Jérôme OLLIER

@SecPompeo Says Melting Sea Ice Opens 'New Passageways' For Trade - @HuffPostPol - 0 views

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    Mike POMPEO Says Melting Sea Ice Opens 'New Passageways' For Trade.
Jérôme OLLIER

U.S. Air Force Saves Injured Fishermen 1,300 Miles from Shore - @Mar_Ex - 0 views

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    U.S. Air Force Saves Injured Fishermen 1,300 Miles from Shore.
Jérôme OLLIER

Iranian oil tanker pursued by US says it is going to Turkey - @AP - 0 views

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    Iranian oil tanker pursued by US says it is going to Turkey.
Jérôme OLLIER

Iran oil tanker sought by US again says it will go to Turkey - @AP - 0 views

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    Iran oil tanker sought by US again says it will go to Turkey.
Jérôme OLLIER

Iranian oil tanker pursued by US off the coast of Syria - @AP - 0 views

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    Iranian oil tanker pursued by US off the coast of Syria.
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