Phytoplankton & pigments
Chlorophyll-a from 0.01 to 1000 mg·m⁻³, plus phycoerythrin, phycocyanin, and pigment index, each read from its own fluorescence return
LIFL-11
Maps water quality along a vessel or aircraft track, in real time
A multi-wavelength LIF lidar that reads the upper water layer from a vessel or a small aircraft. At a station it records the full 48-band echo spectrum in about fifteen seconds, and underway it streams four selected bands at up to 10 Hz. It comes in two excitation models, 355 + 532 nm for chlorophyll, CDOM, and suspended matter, or 266 + 532 nm for oils, phenols, and tryptophan.
Bands 48 12 × 4 ch
Rep. rate 10 Hz max
Resolution <1 m along-track
Detection 0.01 mg·m⁻³ chl-a
Model
The instrument
3D instrument view, enable JavaScript to inspect
LIFL-11, 3D VIEW ⟳ SCROLL TO ROTATE
Measures
What it measures
Each parameter is resolved through its own optical process, and every return band is read from the excitation line that produces it
Dissolved organic matter
CDOM and FDOM, fulvic and humic acids, and the organic signature of sewage
Hydrocarbons & oil
Fuels, diesel, crude, and oil-in-water emulsions, fingerprinted by UV excitation at 266 nm
Marine litter & plastics
Polyethylene, polypropylene, wood, leaves, seagrass, and surface foam, separated by their fluorescence signatures
Suspended matter
Mineral matter and suspended sediment from 0.1 to 200 g·m⁻³ along the survey track
And more across the spectrum
The full 48-band spectrum also resolves phycoerythrin and phycocyanin, bacteriochlorophyll, tryptophan and phenol markers, and methane seeps, each from its own fluorescence signature
Deployment platforms
Custom mounts and integration on request
Research vessel
Onboard fixed mount
▸ Continuous along-track surveySmall vessel / RIB
RIB-class deployment
▸ Shallow and nearshore workFerry of opportunity
Hull-mount
▸ Crew-of-opportunity programmeAutogyro / small aircraft
Small-aircraft payload
▸ Airborne along-track surveyFixed coastal station
Permanent installation
▸ All-weather, IP68USV
Deck-mounted payload
▸ Unattended along-track surveySpecifications
Full datasheet, PDF 5.2 MB
Optical
Channels
4
Bands per channel
12
Total bands
48, ~250–800 nm
Excitation
355 + 532 nm or 266 + 532 nm
Pulse energy
10 mJ @266, 12 mJ @355, 12 mJ @532
Pulse duration
4 ns
Repetition rate
up to 10 Hz
Full-spectrum acquisition
~10–15 s (station mode)
Telescope
76 mm Newton
Surface-layer sensing
0.5–10 m @355 nm, 1–25 m @532 nm
Vertical profiling
up to 50 m
Chl-a range
0.01–1000 mg·m⁻³
Suspended matter range
0.1–200 g·m⁻³
CDOM (a440)
0.001–0.15 m⁻¹
Electronics
Georeferencing
GNSS/IMU @10 Hz + context camera
Mechanical
Size / mass
44 × 33 × 28 cm, 21 kg
Protection
IP68, marine-grade, all-weather
Electrical
Power
< 80 W, 24 V DC or 100–230 V AC
Contact
Enquire about the LIFL-11
Pricing, integration support, and quotes come from the engineering team directly, usually within two working days