The future of Earth observation in hydrology

Handle URI:
http://hdl.handle.net/10754/625283
Title:
The future of Earth observation in hydrology
Authors:
McCabe, Matthew F. ( 0000-0002-1279-5272 ) ; Rodell, Matthew ( 0000-0003-0106-7437 ) ; Alsdorf, Douglas E.; Miralles, Diego G. ( 0000-0001-6186-5751 ) ; Uijlenhoet, Remko ( 0000-0001-7418-4445 ) ; Wagner, Wolfgang; Lucieer, Arko; Houborg, Rasmus; Verhoest, Niko E. C. ( 0000-0003-4116-8881 ) ; Franz, Trenton E.; Shi, Jiancheng; Gao, Huilin; Wood, Eric F. ( 0000-0001-7037-9675 )
Abstract:
In just the past 5 years, the field of Earth observation has progressed beyond the offerings of conventional space-agency-based platforms to include a plethora of sensing opportunities afforded by CubeSats, unmanned aerial vehicles (UAVs), and smartphone technologies that are being embraced by both for-profit companies and individual researchers. Over the previous decades, space agency efforts have brought forth well-known and immensely useful satellites such as the Landsat series and the Gravity Research and Climate Experiment (GRACE) system, with costs typically of the order of 1 billion dollars per satellite and with concept-to-launch timelines of the order of 2 decades (for new missions). More recently, the proliferation of smartphones has helped to miniaturize sensors and energy requirements, facilitating advances in the use of CubeSats that can be launched by the dozens, while providing ultra-high (3–5 m) resolution sensing of the Earth on a daily basis. Start-up companies that did not exist a decade ago now operate more satellites in orbit than any space agency, and at costs that are a mere fraction of traditional satellite missions. With these advances come new space-borne measurements, such as real-time high-definition video for tracking air pollution, storm-cell development, flood propagation, precipitation monitoring, or even for constructing digital surfaces using structure-from-motion techniques. Closer to the surface, measurements from small unmanned drones and tethered balloons have mapped snow depths, floods, and estimated evaporation at sub-metre resolutions, pushing back on spatio-temporal constraints and delivering new process insights. At ground level, precipitation has been measured using signal attenuation between antennae mounted on cell phone towers, while the proliferation of mobile devices has enabled citizen scientists to catalogue photos of environmental conditions, estimate daily average temperatures from battery state, and sense other hydrologically important variables such as channel depths using commercially available wireless devices. Global internet access is being pursued via high-altitude balloons, solar planes, and hundreds of planned satellite launches, providing a means to exploit the <q>internet of things</q> as an entirely new measurement domain. Such global access will enable real-time collection of data from billions of smartphones or from remote research platforms. This future will produce petabytes of data that can only be accessed via cloud storage and will require new analytical approaches to interpret. The extent to which today's hydrologic models can usefully ingest such massive data volumes is unclear. Nor is it clear whether this deluge of data will be usefully exploited, either because the measurements are superfluous, inconsistent, not accurate enough, or simply because we lack the capacity to process and analyse them. What is apparent is that the tools and techniques afforded by this array of novel and game-changing sensing platforms present our community with a unique opportunity to develop new insights that advance fundamental aspects of the hydrological sciences. To accomplish this will require more than just an application of the technology: in some cases, it will demand a radical rethink on how we utilize and exploit these new observing systems.
KAUST Department:
WDRC
Citation:
The future of Earth observation in hydrology 2017, 21 (7):3879 Hydrology and Earth System Sciences
Journal:
Hydrology and Earth System Sciences
Issue Date:
28-Jul-2017
DOI:
10.5194/hess-21-3879-2017
Type:
Article
ISSN:
1607-7938
Additional Links:
https://www.hydrol-earth-syst-sci.net/21/3879/2017/
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorMcCabe, Matthew F.en
dc.contributor.authorRodell, Matthewen
dc.contributor.authorAlsdorf, Douglas E.en
dc.contributor.authorMiralles, Diego G.en
dc.contributor.authorUijlenhoet, Remkoen
dc.contributor.authorWagner, Wolfgangen
dc.contributor.authorLucieer, Arkoen
dc.contributor.authorHouborg, Rasmusen
dc.contributor.authorVerhoest, Niko E. C.en
dc.contributor.authorFranz, Trenton E.en
dc.contributor.authorShi, Jianchengen
dc.contributor.authorGao, Huilinen
dc.contributor.authorWood, Eric F.en
dc.date.accessioned2017-08-02T18:19:36Z-
dc.date.available2017-08-02T18:19:36Z-
dc.date.issued2017-07-28-
dc.identifier.citationThe future of Earth observation in hydrology 2017, 21 (7):3879 Hydrology and Earth System Sciencesen
dc.identifier.issn1607-7938-
dc.identifier.doi10.5194/hess-21-3879-2017-
dc.identifier.urihttp://hdl.handle.net/10754/625283-
dc.description.abstractIn just the past 5 years, the field of Earth observation has progressed beyond the offerings of conventional space-agency-based platforms to include a plethora of sensing opportunities afforded by CubeSats, unmanned aerial vehicles (UAVs), and smartphone technologies that are being embraced by both for-profit companies and individual researchers. Over the previous decades, space agency efforts have brought forth well-known and immensely useful satellites such as the Landsat series and the Gravity Research and Climate Experiment (GRACE) system, with costs typically of the order of 1 billion dollars per satellite and with concept-to-launch timelines of the order of 2 decades (for new missions). More recently, the proliferation of smartphones has helped to miniaturize sensors and energy requirements, facilitating advances in the use of CubeSats that can be launched by the dozens, while providing ultra-high (3–5 m) resolution sensing of the Earth on a daily basis. Start-up companies that did not exist a decade ago now operate more satellites in orbit than any space agency, and at costs that are a mere fraction of traditional satellite missions. With these advances come new space-borne measurements, such as real-time high-definition video for tracking air pollution, storm-cell development, flood propagation, precipitation monitoring, or even for constructing digital surfaces using structure-from-motion techniques. Closer to the surface, measurements from small unmanned drones and tethered balloons have mapped snow depths, floods, and estimated evaporation at sub-metre resolutions, pushing back on spatio-temporal constraints and delivering new process insights. At ground level, precipitation has been measured using signal attenuation between antennae mounted on cell phone towers, while the proliferation of mobile devices has enabled citizen scientists to catalogue photos of environmental conditions, estimate daily average temperatures from battery state, and sense other hydrologically important variables such as channel depths using commercially available wireless devices. Global internet access is being pursued via high-altitude balloons, solar planes, and hundreds of planned satellite launches, providing a means to exploit the <q>internet of things</q> as an entirely new measurement domain. Such global access will enable real-time collection of data from billions of smartphones or from remote research platforms. This future will produce petabytes of data that can only be accessed via cloud storage and will require new analytical approaches to interpret. The extent to which today's hydrologic models can usefully ingest such massive data volumes is unclear. Nor is it clear whether this deluge of data will be usefully exploited, either because the measurements are superfluous, inconsistent, not accurate enough, or simply because we lack the capacity to process and analyse them. What is apparent is that the tools and techniques afforded by this array of novel and game-changing sensing platforms present our community with a unique opportunity to develop new insights that advance fundamental aspects of the hydrological sciences. To accomplish this will require more than just an application of the technology: in some cases, it will demand a radical rethink on how we utilize and exploit these new observing systems.en
dc.language.isoenen
dc.relation.urlhttps://www.hydrol-earth-syst-sci.net/21/3879/2017/en
dc.rightsArchived with thanks to Hydrology and Earth System Sciencesen
dc.subjectRemote Sensingen
dc.subjectHydrologyen
dc.subjectcubesaten
dc.subjectUAVen
dc.subjectearth observationen
dc.subjectSatelliteen
dc.titleThe future of Earth observation in hydrologyen
dc.typeArticleen
dc.contributor.departmentWDRCen
dc.identifier.journalHydrology and Earth System Sciencesen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
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