Matches in SemOpenAlex for { <https://semopenalex.org/work/W3022521463> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W3022521463 startingPage "1368" @default.
- W3022521463 abstract "Abstract Volcanic ash clouds can present an aviation hazard over distances of thousands of kilometres and, to help to mitigate this hazard, advanced numerical models are used to forecast ash dispersion in the atmosphere. However, forecast accuracy is usually limited by uncertainties in initial conditions such as the eruption rate and the vertical distribution of ash injected above the volcano. Here, we demonstrate the potential of the Telematics Earth Observation Mission (TOM) picosatellite formation, due for launch in 2020, to provide valuable information for constraining ash cloud dispersion models through simultaneous image acquisition from three satellites. TOM will carry commercial frame cameras. Using photogrammetric simulations, we show that such data should enable ash cloud heights to be determined with a precision (~30–140 m depending on configuration) comparable to the vertical resolution of lidar observations (30–180 m depending on the cloud height). To support these estimates, we processed photographs taken from the International Space Station of the 2009 Sarychev Peak eruption, as a proxy for TOM imagery. Structure-from-motion photogrammetric software successfully reconstructed the 3-D form of the ascending ash cloud, as well as surrounding cloud layers. Direct estimates of the precision of the ash cloud height measurements, as well as comparisons between independently processed image sets, indicate that a vertical measurement precision of ~200 m was achieved. Image sets acquired at different times captured the plume dynamics and enabled a mean ascent velocity of 14 m s−1 to be estimated for regions above 7 km. In contrast, the uppermost regions of the column (at a measured cloud top height of ~11 km) were not ascending significantly, enabling us to constrain a 1-D plume ascent model, from which estimates for the vent size (50 m) and eruption mass flux (2.6 × 106 kg s−1) could be made. Thus, we demonstrate that nanosatellite imagery has the potential for substantially reducing uncertainties in ash dispersion models by providing valuable information on eruptive conditions." @default.
- W3022521463 created "2020-05-13" @default.
- W3022521463 creator A5001320299 @default.
- W3022521463 creator A5015862719 @default.
- W3022521463 creator A5041913528 @default.
- W3022521463 creator A5070729554 @default.
- W3022521463 creator A5074988032 @default.
- W3022521463 date "2018-04-01" @default.
- W3022521463 modified "2023-09-23" @default.
- W3022521463 title "Using picosatellites for 4-D imaging of volcanic clouds: proof of concept using ISS photography of the 2009 Sarychev Peak eruption" @default.
- W3022521463 hasPublicationYear "2018" @default.
- W3022521463 type Work @default.
- W3022521463 sameAs 3022521463 @default.
- W3022521463 citedByCount "0" @default.
- W3022521463 crossrefType "journal-article" @default.
- W3022521463 hasAuthorship W3022521463A5001320299 @default.
- W3022521463 hasAuthorship W3022521463A5015862719 @default.
- W3022521463 hasAuthorship W3022521463A5041913528 @default.
- W3022521463 hasAuthorship W3022521463A5070729554 @default.
- W3022521463 hasAuthorship W3022521463A5074988032 @default.
- W3022521463 hasConcept C10161872 @default.
- W3022521463 hasConcept C111919701 @default.
- W3022521463 hasConcept C117455697 @default.
- W3022521463 hasConcept C120806208 @default.
- W3022521463 hasConcept C121332964 @default.
- W3022521463 hasConcept C127313418 @default.
- W3022521463 hasConcept C1276947 @default.
- W3022521463 hasConcept C13280743 @default.
- W3022521463 hasConcept C146159030 @default.
- W3022521463 hasConcept C153294291 @default.
- W3022521463 hasConcept C154945302 @default.
- W3022521463 hasConcept C165205528 @default.
- W3022521463 hasConcept C179537507 @default.
- W3022521463 hasConcept C199194280 @default.
- W3022521463 hasConcept C205649164 @default.
- W3022521463 hasConcept C41008148 @default.
- W3022521463 hasConcept C51399673 @default.
- W3022521463 hasConcept C62649853 @default.
- W3022521463 hasConcept C64551749 @default.
- W3022521463 hasConcept C79974875 @default.
- W3022521463 hasConceptScore W3022521463C10161872 @default.
- W3022521463 hasConceptScore W3022521463C111919701 @default.
- W3022521463 hasConceptScore W3022521463C117455697 @default.
- W3022521463 hasConceptScore W3022521463C120806208 @default.
- W3022521463 hasConceptScore W3022521463C121332964 @default.
- W3022521463 hasConceptScore W3022521463C127313418 @default.
- W3022521463 hasConceptScore W3022521463C1276947 @default.
- W3022521463 hasConceptScore W3022521463C13280743 @default.
- W3022521463 hasConceptScore W3022521463C146159030 @default.
- W3022521463 hasConceptScore W3022521463C153294291 @default.
- W3022521463 hasConceptScore W3022521463C154945302 @default.
- W3022521463 hasConceptScore W3022521463C165205528 @default.
- W3022521463 hasConceptScore W3022521463C179537507 @default.
- W3022521463 hasConceptScore W3022521463C199194280 @default.
- W3022521463 hasConceptScore W3022521463C205649164 @default.
- W3022521463 hasConceptScore W3022521463C41008148 @default.
- W3022521463 hasConceptScore W3022521463C51399673 @default.
- W3022521463 hasConceptScore W3022521463C62649853 @default.
- W3022521463 hasConceptScore W3022521463C64551749 @default.
- W3022521463 hasConceptScore W3022521463C79974875 @default.
- W3022521463 hasLocation W30225214631 @default.
- W3022521463 hasOpenAccess W3022521463 @default.
- W3022521463 hasPrimaryLocation W30225214631 @default.
- W3022521463 hasRelatedWork W1606148469 @default.
- W3022521463 hasRelatedWork W2072510883 @default.
- W3022521463 hasRelatedWork W2140192895 @default.
- W3022521463 hasRelatedWork W2172486268 @default.
- W3022521463 hasRelatedWork W2172660179 @default.
- W3022521463 hasRelatedWork W2346125481 @default.
- W3022521463 hasRelatedWork W2433247146 @default.
- W3022521463 hasRelatedWork W2579614569 @default.
- W3022521463 hasRelatedWork W2739039254 @default.
- W3022521463 hasRelatedWork W2786052369 @default.
- W3022521463 hasRelatedWork W2799807381 @default.
- W3022521463 hasRelatedWork W2895486741 @default.
- W3022521463 hasRelatedWork W2945204685 @default.
- W3022521463 hasRelatedWork W2967308004 @default.
- W3022521463 hasRelatedWork W3021255603 @default.
- W3022521463 hasRelatedWork W3187921311 @default.
- W3022521463 hasRelatedWork W3189604703 @default.
- W3022521463 hasRelatedWork W815129262 @default.
- W3022521463 hasRelatedWork W817886575 @default.
- W3022521463 hasRelatedWork W2182727398 @default.
- W3022521463 isParatext "false" @default.
- W3022521463 isRetracted "false" @default.
- W3022521463 magId "3022521463" @default.
- W3022521463 workType "article" @default.