title: Portable Remote Imaging Spectrometer coastal ocean sensor: design, characteristics, and first flight results.
abstract: The design, characteristics, and first test flight results are described of the Portable Remote Imaging Spectrometer, an airborne sensor specifically designed to address the challenges of coastal ocean remote sensing. The sensor incorporates several technologies that are demonstrated for the first time, to the best of our knowledge, in a working system in order to achieve a high performance level in terms of uniformity, signal-to-noise ratio, low polarization sensitivity, low stray light, and high spatial resolution. The instrument covers the 350-1050 nm spectral range with a 2.83 nm sampling per pixel, and a 0.88 mrad instantaneous field of view, with 608 cross-track pixels in a pushbroom configuration. Two additional infrared channels (1240 and 1610 nm) are measured by a spot radiometer housed in the same head. The spectrometer design is based on an optically fast (F/1.8) Dyson design form coupled to a wide angle two-mirror telescope in a configuration that minimizes polarization sensitivity without the use of a depolarizer. A grating with minimum polarization sensitivity and broadband efficiency was fabricated as well as a slit assembly with black (etched) silicon surface to minimize backscatter. First flight results over calibration sites as well as Monterey Bay in California have demonstrated good agreement between in situ and remotely sensed data, confirming the potential value of the sensor to the coastal ocean science community.
authors.forename: Pantazis
authors.initials: P
authors.lastname: Mouroulis
authors.forename: Byron
authors.initials: B
authors.lastname: Van Gorp
authors.forename: Robert O
authors.initials: RO
authors.lastname: Green
authors.forename: Heidi
authors.initials: H
authors.lastname: Dierssen
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Wilson
authors.forename: Michael
authors.initials: M
authors.lastname: Eastwood
authors.forename: Joseph
authors.initials: J
authors.lastname: Boardman
authors.forename: Bo-Cai
authors.initials: BC
authors.lastname: Gao
authors.forename: David
authors.initials: D
authors.lastname: Cohen
authors.forename: Brian
authors.initials: B
authors.lastname: Franklin
authors.forename: Frank
authors.initials: F
authors.lastname: Loya
authors.forename: Sarah
authors.initials: S
authors.lastname: Lundeen
authors.forename: Alan
authors.initials: A
authors.lastname: Mazer
authors.forename: Ian
authors.initials: I
authors.lastname: McCubbin
authors.forename: David
authors.initials: D
authors.lastname: Randall
authors.forename: Brandon
authors.initials: B
authors.lastname: Richardson
authors.forename: Jose I
authors.initials: JI
authors.lastname: Rodriguez
authors.forename: Charles
authors.initials: C
authors.lastname: Sarture
authors.forename: Eugenio
authors.initials: E
authors.lastname: Urquiza
authors.forename: Rudolph
authors.initials: R
authors.lastname: Vargas
authors.forename: Victor
authors.initials: V
authors.lastname: White
authors.forename: Karl
authors.initials: K
authors.lastname: Yee
mesh_terms: D000401:Aircraft / Q000295:instrumentation*; D004784:Environmental Monitoring / Q000295:instrumentation*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008904:Miniaturization; D009792:Oceans and Seas; D010865:Pilot Projects; D058998:Remote Sensing Technology / Q000295:instrumentation*; D012623:Seawater / Q000032:analysis* / Q000737:chemistry*; D013057:Spectrum Analysis / Q000295:instrumentation*