--- title: Explained by Offshore Sensing description: Concise ocean-tech explainers. Clear definitions and practical context on USVs, Iridium, AIS, eDNA, acoustics offshore operations, and everything related. image: https://sailbuoy.no/hubfs/Website%20assets/Feature%20Images%20posts/News%20-%20High-latitude%20oceanic%20zooplankton%20community.png --- [Skip to main content](https://sailbuoy.no/explained-by-offshore-sensing#main-content) [![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg) ![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg) ![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg) ![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg)](https://sailbuoy.no?hsLang=en) - [Show submenu for USV USV](https://sailbuoy.no/unmanned-surface-vessels) - [SB Bio](https://sailbuoy.no/sb-bio-unmanned-surface-vessel) - [SB Comms](https://sailbuoy.no/sb-comms-unmanned-surface-vessel) - [SB Echo](https://sailbuoy.no/sb-echo-unmanned-surface-vessel) - [SB eEDNA](https://sailbuoy.no/sb-edna-unmanned-surface-vessel) - [SB Met](https://sailbuoy.no/sb-met-unmanned-surface-vessel) - [Fisheries](https://sailbuoy.no/commercial-fish-scouting) - [Build your own](https://sailbuoy.no/unmanned-surface-vessels#byo) - [Technology](https://sailbuoy.no/the-sailbuoy-technology) - [Missions](https://sailbuoy.no/missions) - [News](https://sailbuoy.no/news) - [Show submenu for Company Company](https://sailbuoy.no/company) - [Join our team](https://sailbuoy.no/career) - [Our partners](https://sailbuoy.no/our-partners) Open main navigation Close main navigation - Show submenu for USV USV - USV - [USV](https://sailbuoy.no/unmanned-surface-vessels) - [SB Bio](https://sailbuoy.no/sb-bio-unmanned-surface-vessel) - [SB Comms](https://sailbuoy.no/sb-comms-unmanned-surface-vessel) - [SB Echo](https://sailbuoy.no/sb-echo-unmanned-surface-vessel) - [SB eEDNA](https://sailbuoy.no/sb-edna-unmanned-surface-vessel) - [SB Met](https://sailbuoy.no/sb-met-unmanned-surface-vessel) - [Fisheries](https://sailbuoy.no/commercial-fish-scouting) - [Build your own](https://sailbuoy.no/unmanned-surface-vessels#byo) - [Technology](https://sailbuoy.no/the-sailbuoy-technology) - [Missions](https://sailbuoy.no/missions) - [News](https://sailbuoy.no/news) - Show submenu for Company Company - Company - [Company](https://sailbuoy.no/company) - [Join our team](https://sailbuoy.no/career) - [Our partners](https://sailbuoy.no/our-partners) - Search - [Contact us](https://sailbuoy.no/contact) [Contact us](https://sailbuoy.no/contact?hsLang=en) Search # Explained by Offshore Sensing     ## Core Concepts & Definitions These explainers build the foundation for reliable ocean operations—clear definitions, practical context, and consistent terms. [Explained by Offshore Sensing: Autonomous platform emissions and sustainability in marine research](https://sailbuoy.no/news/explained-by-offshore-sensing-autonomous-platform-emissions-and-sustainability-in-marine-research?hsLang=en) Zero-emission wind and solar USVs cut research fuel use by up to 95%, enabling long-endurance ocean monitoring with a far lower environmental footprint. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-autonomous-platform-emissions-and-sustainability-in-marine-research?hsLang=en) [Explained by Offshore Sensing: Arctic and polar ocean monitoring with autonomous platforms](https://sailbuoy.no/news/explained-by-offshore-sensing-arctic-and-polar-ocean-monitoring-with-autonomous-platforms?hsLang=en) Autonomous wind- and solar-powered platforms enable polar ocean monitoring in extreme weather, delivering continuous data from seasons and regions vessels miss. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-arctic-and-polar-ocean-monitoring-with-autonomous-platforms?hsLang=en) [Explained by Offshore Sensing: Continuous ocean time-series data: why gaps in observation cost science](https://sailbuoy.no/news/explained-by-offshore-sensing-continuous-ocean-time-series-data-why-gaps-in-observation-cost-science?hsLang=en) Continuous ocean time-series data closes gaps between vessel surveys, capturing seasonal shifts, storms, and short-lived events with months-long autonomous monitoring. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-continuous-ocean-time-series-data-why-gaps-in-observation-cost-science?hsLang=en) [Explained by Offshore Sensing: Wind-powered USV for oceanographic research: capabilities and sensor integration](https://sailbuoy.no/news/explained-by-offshore-sensing-wind-powered-usv-for-oceanographic-research-capabilities-and-sensor-integration?hsLang=en) Wind-powered USV for ocean research: modular sensors, real-time satellite data, and up to 12-month missions—no fuel, no crew. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-wind-powered-usv-for-oceanographic-research-capabilities-and-sensor-integration?hsLang=en) [Explained by Offshore Sensing: Long-endurance ocean data collection: what it means and why it matters for research](https://sailbuoy.no/news/explained-by-offshore-sensing-long-endurance-ocean-data-collection-what-it-means-and-why-it-matters-for-research?hsLang=en) How autonomous echo sounders differ from vessel-mounted systems: transducer placement, near-surface blind zones, noise, and the value of continuous monitoring. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-long-endurance-ocean-data-collection-what-it-means-and-why-it-matters-for-research?hsLang=en) [Explained by Offshore Sensing: How an autonomous echo sounder differs from vessel-mounted systems](https://sailbuoy.no/news/explained-by-offshore-sensing-how-an-autonomous-echo-sounder-differs-from-vessel-mounted-systems?hsLang=en) How autonomous echo sounders differ from vessel-mounted systems: transducer placement, near-surface blind zones, noise, and the value of continuous monitoring. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-how-an-autonomous-echo-sounder-differs-from-vessel-mounted-systems?hsLang=en) [Explained by Offshore Sensing: Simrad EK80: scientific echosounder overview](https://sailbuoy.no/news/explained-by-offshore-sensing-simrad-ek80-scientific-echosounder-overview?hsLang=en) Simrad EK80 overview: what it records, typical outputs, and how EK80 scientific echosounder data supports fisheries monitoring, indicators, and analysis [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-simrad-ek80-scientific-echosounder-overview?hsLang=en) [Explained by Offshore Sensing: Scientific echosounder: what it is and why it’s used?](https://sailbuoy.no/news/explained-by-offshore-sensing-scientific-echosounder-what-it-is-and-why-its-used?hsLang=en) Scientific echosounder explained: what it measures, how pings become echograms and biomass indicators, and why fisheries rely on calibrated acoustic surveys. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-scientific-echosounder-what-it-is-and-why-its-used?hsLang=en) [Explained by Offshore Sensing: Acoustic data in fisheries: meaning, types, and examples](https://sailbuoy.no/news/explained-by-offshore-sensing-acoustic-data-in-fisheries-meaning-types-and-examples?hsLang=en) Acoustic data in fisheries explained: raw vs indicators, echograms, metadata, and examples of how backscatter becomes fish and biomass distribution products. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-acoustic-data-in-fisheries-meaning-types-and-examples?hsLang=en) [Explained by Offshore Sensing: Fish and biomass distribution: how it’s measured and mapped](https://sailbuoy.no/news/explained-by-offshore-sensing-fish-and-biomass-distribution-how-its-measured-and-mapped?hsLang=en) Fish and biomass distribution explained: what it means, how scientific echosounders measure backscatter in the water column, and how transects become maps. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-fish-and-biomass-distribution-how-its-measured-and-mapped?hsLang=en) [Explained by Offshore Sensing: Full-resolution acoustic dataset: what you get and why it matters](https://sailbuoy.no/news/explained-by-offshore-sensing-full-resolution-acoustic-dataset-what-you-get-and-why-it-matters?hsLang=en) Full-resolution acoustic dataset explained: what it includes, why it supports QA and defensible reporting, and how it complements transmitted key indicators. [Read More](https://sailbuoy.no/news/explained-by-offshore-sensing-full-resolution-acoustic-dataset-what-you-get-and-why-it-matters?hsLang=en) [Explained by Offshore Sensing: Offshore Wind Baseline](https://sailbuoy.no/news/offshore-wind-baseline?hsLang=en) Offshore Wind Baseline explained: An offshore wind baseline is a mandatory pre-construction environmental survey measuring ocean conditions, marine life... [Read More](https://sailbuoy.no/news/offshore-wind-baseline?hsLang=en) [Explained by Offshore Sensing: eDNA sampling at sea](https://sailbuoy.no/news/edna-sampling-at-sea?hsLang=en) eDNA sampling at sea with a wind-propelled USV: persistent station visits, Iridium mission control, ~3 kn average and up to 12-month endurance to reduce crewed vessel-days and improve baselines. [Read More](https://sailbuoy.no/news/edna-sampling-at-sea?hsLang=en) [Explained by Offshore Sensing: USV with echosounder](https://sailbuoy.no/news/usv-with-echosounder?hsLang=en) USV with echosounder for persistent fisheries acoustics: ~3 kn average, up to 12-month endurance, Iridium control/telemetry, and geofenced transects that reduce crewed vessel-days. [Read More](https://sailbuoy.no/news/usv-with-echosounder?hsLang=en) [Explained by Offshore Sensing: AIS for USVs](https://sailbuoy.no/news/ais-for-usvs?hsLang=en) AIS for USVs explained: visibility for nearby traffic, working with Iridium control and geofencing to support safe autonomous missions. Local rules apply; not legal advice. [Read More](https://sailbuoy.no/news/ais-for-usvs?hsLang=en) [Explained by Offshore Sensing: Wind-propelled USV](https://sailbuoy.no/news/wind-propelled-usv?hsLang=en) AIS for USVs explained: visibility for nearby traffic, working with Iridium control and geofencing to support safe autonomous missions. Local rules apply; not legal advice. [Read More](https://sailbuoy.no/news/wind-propelled-usv?hsLang=en) [![Offshore Sensing_original_logo_fixed](https://sailbuoy.no/hubfs/Logo%20and%20Icons/Offshore%20Sensing_original_logo_fixed.svg)](https://sailbuoy.no?hsLang=en) - [Book meeting](https://sailbuoy.no/contact) - [Build your Sailbuoy](https://sailbuoy.no/unmanned-surface-vessels) - [Explained by Offshore Sensing](https://sailbuoy.no/explained-by-offshore-sensing) - [Resources](https://sailbuoy.no/resources) Offshore Sensing AS Sandslimarken 31 5254 Sandsli, Norway   [Crowdworks Company Profile](https://app.crowdworks.it/companies/offshore-sensing/update) ©2026 Offshore Sensing AS. [Privacy Policy](https://sailbuoy.no/privacy-policy/?hsLang=en) -