{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Surfing scientists and algae hunters use Sentinel-3 to study coastline' data-url='/boclips/videos/6878fa71860c8396ee54d971' data-video-url='/boclips/videos/6878fa71860c8396ee54d971' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nSurfing scientists and algae hunters use Sentinel-3 to study coastline\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eBob Brewin is pioneering a new technique in satellite oceanography - by going surfing. The  Plymouth Marine Laboratory  scientist uses his board to take sea surface temperature measurements, and then use them to better interpret data...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eBob Brewin is pioneering a new technique in satellite oceanography - by going surfing. The  Plymouth Marine Laboratory  scientist uses his board to take sea surface temperature measurements, and then use them to better interpret data from European satellite Sentinel-3. \u003cbr/\u003e\u003cbr/\u003eHe does so because there's a real need for those measurements: \"In this near-shore region of the ocean there is a lack of observations, such that we don't really know well the accuracy or the precision of the satellite observations.\"\u003cbr/\u003e \u003cbr/\u003e\u003cbr/\u003eThe lack of readings directly in the water complicates the job of understanding satellite measurements along the coastal zone. \u003cbr/\u003e\u003cbr/\u003eBob wants to fix that problem with a device called a  SmartFin .   \u003cbr/\u003e\u003cbr/\u003e\"This SmartFin is the same size and weight as a normal surfboard fin, but it contains a temperature sensor,  a GPS device, an accelerometer for measuring motion, and it has Bluetooth capabilities to transfer the temperature and motion data from the fin onto your mobile phone,\" he says.  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003eSo, each time Bob surfs - which is at least once a week - the fin records the temperature. It's a new way of monitoring the coastline of the English Channel, a place which is important for many forms of life, and is sensitive to climate change.  \u003cbr/\u003e\u003cbr/\u003e\"It’s a vitally important region of our seas,\" explains Bob. \"It contains very high levels of marine biodiversity, marine productivity, it’s the spawning ground for many economically important species of fish. And it’s the foraging ground for marine vertebrates such as seabirds, kitty wakes and guillemots.\" \u003cbr/\u003e\u003cbr/\u003eSentinel-3B joins 3A on a polar orbit  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003eBob and his colleagues work with data from the Sentinel-3 satellite, part of the European Commission's Copernicus fleet of Earth observing spacecraft. This month the new Sentinel-3B satellite launches, joining the Sentinel-3A satellite, which launched in 2016. \u003cbr/\u003e\u003cbr/\u003eFor four months both satellites will fly just 30 seconds apart on their 800kilometre high polar orbit, effectively 'seeing' the same view of our planet at the same time. Later they will fly separately, providing daily coverage of the planet.  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003eThe pair will measure sea surface temperature and ocean surface colour, and are being flown in tandem at first to verify and cross-check their readings, as  ESA  Copernicus Space Segment Programme Manager Guido Livrini explains: \"The reason why they fly in close formation at the beginning is we want to cross-calibrate the measurement that we obtain from the 3A which has already been validated, with the measurement that we will obtain from its twin, Sentinel-3B.  Later on we will have a constellation in orbit of two satellites that will provide comparable data of equal quality but much more frequently than what one satellite alone could do.\" \u003cbr/\u003eHunting for toxic algae off the coast of Normandy \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003eAccuracy and frequency is exactly what interests scientists from French research organisation  Ifremer  studying algae, in particular harmful algae, in the waters of Normandy. We hopped aboard their high speed rigid inflatable boats on a their regular outing to take samples off the coast of Courseulles-sur-Mer.  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003eEvery two weeks they measure the temperature, salinity and oxygen level of the water, and combine it with Sentinel-3 data. \u003cbr/\u003e\u003cbr/\u003eScientist Tania Hernández Fariñas explains the goal: \"Here we're measuring several abiotic parameters. These abiotic parameters will be used to relate with algal blooms, and the growth of the algae, and it's those algae that we try to observe from the satellite, which has much larger spatial and temporal coverage.\"  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003eThe crew are swiftly back on shore and into the lab to study what's in the seawater. \u003cbr/\u003e\u003cbr/\u003eTania explains the need for speed:  \"You have to be aware, these are biological communities, so the analysis has to be done as fast as possible. So once we've taken the samples at sea we come straight back to the laboratory to do the analysis\" \u003cbr/\u003e\u003cbr/\u003eTania works in a new project called Sentinel-3 Eurohab  to study harmful algal blooms, which are poisonous for fish and even humans. It means using space data and sea measurements together: \u003cbr/\u003e\u003cbr/\u003e\"The satellite captures a broad view of the production of phytoplankton. With the in situ measurements we'll be able to go further and explain which species were seen by the satellite and to identify the species which are toxic,\" she says. \u003cbr/\u003eThe team has already spotted an important trend - the intensity of the phytoplankton blooms has dropped significantly in the past two decades in the English Channel. There is speculation that this is linked to changes in environmental regulations reducing the use of phosphates in household products and less fertilizer being sprayed on farmland.  \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003eFrancis Gohin, who also works on the Eurohab project at Ifremer, told Euronews: \"We have studied all the data on sea water colour coming from NASA and ESA over the past 20 years, in order to follow the evolution of the quantity of phytoplankton from day to day around the coastal waters of the English\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='action-container flex justify-between'\u003e\n\u003cbutton aria-expanded='false' aria-label='Read more description' class='rp-full-description' type='button'\u003e\n\u003ci class='fai fa-solid fa-align-left'\u003e\u003c/i\u003e\n\u003cspan id='read_more'\u003eRead More\u003c/span\u003e\n\u003c/button\u003e\n\u003cdiv class='rp-report'\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv 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