The US National Oceanic and Atmospheric Association (NOAA) and San Francisco-based ocean technology start-up Saildrone will launch the first batch of 11 unmanned sailing vehicles these days, as part of NOAA’s expanding use of technologies to advance fisheries, weather and climate science.
Saildrones, powered by wind and the sun’s rays, have traveled about 50,000 miles on NOAA missions — about twice the distance it takes to circumnavigate the earth — since the partnership began in 2014. Each year, Saildrone Inc. refines these vehicles for data collection with NOAA scientists who have helped integrate 18 sensors into the drone.
These sensors are capable of collecting measurements such as air and water temperature, wave height, salinity, carbon dioxide concentration, fish abundance and the presence of marine mammals.
The saildrone is an amazing device and provides us with an array of information, in some cases information that hasn’t been readily available. Last summer, two saildrones journeyed north through the Bering Strait for the first time. We’re headed back to the Arctic this summer to learn more about rapid environmental changes occurring here.
…said Jessica Cross, NOAA oceanographer who is using the saildrone to study how the Arctic Ocean is absorbing carbon dioxide and becoming more acidic.
Saildrones missions taking place this year
1. Gain a better understanding of West Coast fisheries
New this year will be fish acoustic surveys using saildrones in waters from Vancouver Island, Canada, to San Diego, California. NOAA Fisheries will launch five saildrones to gather essential data on fish populations, including sardines, anchovies and hake, one of the most valuable fisheries on the West Coast.
Four of these saildrones will duplicate the path of NOAA Ship Reuben Lasker to compare data taken by a sensor that uses sound waves that bounce off the backs of fish to record the abundance of fish, and test whether saildrones can help improve the efficiency and accuracy of fish stock estimates. These estimates are used to make decisions on fishing rules and limits.
2. Monitor change in the Arctic
Four saildrones will leave from Dutch Harbor, Alaska, for the Chukchi Sea to study the effects of ocean acidification on marine species as well as the distribution of Arctic cod. Arctic cod is a major food for seabirds, ringed seals, narwhals, belugas and other fish.
We are trying to unravel the puzzle of what happens to young Arctic cod that are so abundant in the summer on the Chukchi Sea shelf but then mature into comparatively few adult fish by the next year,
…says Alex De Robertis, NOAA Fisheries biologist.
3. Track weather in the tropical Pacific
Two saildrones will glide 2,000 miles to the tropical Pacific Ocean in September to survey ocean and atmospheric data, including changes in ocean temperature and ocean carbon dioxide concentrations. Collecting data in the area of the Tropical Pacific Observing System (TPOS) of moorings, saildrones will provide high-resolution data that augments our understanding of how the weather-maker called El Niño develops in this region.
The saildrone research is part of the broader effort to advance TPOS, which is our nation’s early warning system for El Niño and underpins US weather forecasting.
In January, Australia’s CSIRO also partnered with Saildrones to improve measurement and monitoring in Australian waters and the Southern Ocean.