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Feasibility Study of an Aquatic Ecosystem Earth Observing System

Dekker, Arnold and Pinnel, Nicole and Gege, Peter and Briottet, Xavier and Court, Andy and Peters, Steef and Turpie, Kevin and Sterckx, Sindy and Costa, Maycira and Giardino, Claudia and Brando, Vittorio and Braga, Federica and Bergeron, Martin and Heege, Thomas and Pflug, Bringfried (2018) Feasibility Study of an Aquatic Ecosystem Earth Observing System. CSIRO, Canberra, Australia. [Other]

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Official URL: http://www.microsofttranslator.com/bv.aspx?from=en&to=de&a=http%3A%2F%2Fceos.org%2Fabout-ceos%2Fpublications-2%2F

Abstract

Many Earth observing sensors have been designed, built and launched with primary objectives of either terrestrial or ocean remote sensing applications. Often the data from these sensors are also used for freshwater, estuarine and coastal water quality observations, bathymetry and benthic mapping. However, such land and ocean specific sensors are not designed for these complex aquatic environments and consequently are not likely to perform as well as a dedicated sensor would. As a CEOS action, CSIRO and DLR have taken the lead on a feasibility assessment to determine the benefits and technological difficulties of designing an Earth observing satellite mission focused on the biogeochemistry of inland, estuarine, deltaic and near coastal waters as well as mapping macrophytes, macro-algae, sea grasses and coral reefs. These environments need higher spatial resolution than current and planned ocean colour sensors offer and need higher spectral resolution than current and planned land Earth observing sensors offer (with the exception of several R&D type imaging spectrometry satellite missions). The results indicate that a dedicated sensor of (non-oceanic) aquatic ecosystems could be a multispectral sensor with ~26 bands in the 380-780 nm wavelength range for retrieving the aquatic ecosystem variables as well as another 15 spectral bands between 360-380 nm and 780-1400 nm for removing atmospheric and air-water interface effects. These requirements are very close to defining an imaging spectrometer with spectral bands between 360 and 1000 nm (suitable for Si based detectors), possibly augmented by a SWIR imaging spectrometer. In that case the spectral bands would ideally have 5 nm spacing and Full Width Half Maximum (FWHM), although it may be necessary to go to 8 nm wide spectral bands (between 380 to 780nm where the fine spectral features occur -mainly due to photosynthetic or accessory pigments) to obtain enough signal to noise. The spatial resolution of such a global mapping mission would be between ~17 and ~33 m enabling imaging of the vast majority of water bodies (lakes, reservoirs, lagoons, estuaries etc.) larger than 0.2 ha and ~25% of river reaches globally (at ~17 m resolution) whilst maintaining sufficient radiometric resolution.

Item URL in elib:https://elib.dlr.de/119249/
Document Type:Other
Additional Information:CEOS, Committee on Earth Observing Satellites Version 2.0, March 2018
Title:Feasibility Study of an Aquatic Ecosystem Earth Observing System
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Dekker, Arnoldcsiro; australiaUNSPECIFIED
Pinnel, NicoleNicole.Pinnel (at) dlr.dehttps://orcid.org/0000-0003-1978-3204
Gege, Peterpeter.gege (at) dlr.dehttps://orcid.org/0000-0003-0939-5267
Briottet, XavieroneraUNSPECIFIED
Court, AndyTNO, NetherlandsUNSPECIFIED
Peters, Steefwater insight bv, the netherlandsUNSPECIFIED
Turpie, KevinNASA, USAUNSPECIFIED
Sterckx, SindyVITO, BelgiumUNSPECIFIED
Costa, Maycirauniversity of victoria, canadaUNSPECIFIED
Giardino, Claudiacnr, italyUNSPECIFIED
Brando, VittorioCNR, ItalyUNSPECIFIED
Braga, FedericaCNR, ItalyUNSPECIFIED
Bergeron, MartinGOC, CanadaUNSPECIFIED
Heege, Thomaseomap gmbh & co. kg, germanyUNSPECIFIED
Pflug, BringfriedBringfried.Pflug (at) dlr.dehttps://orcid.org/0000-0002-4626-9393
Date:March 2018
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:197
Editors:
EditorsEmail
Dekker, ArnoldCSIRO, Australia
Pinnel, NicoleDLR
Publisher:CSIRO, Canberra, Australia
Series Name:CEOS Report
Status:Published
Keywords:Earth observation, aquatic ecosystems, multispectral remote sensing, imaging spectrometry, optical sensor specifications, environmental applications
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Remote sensing and geoscience, R - Vorhaben hochauflösende Fernerkundungsverfahren, Vorhaben Optical Remote Sensing
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface
Remote Sensing Technology Institute > Experimental Methods
Remote Sensing Technology Institute > Photogrammetry and Image Analysis
Deposited By: Pinnel, Dr.rer.nat Nicole
Deposited On:08 Mar 2018 11:52
Last Modified:31 Jul 2019 20:16

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