@inproceedings{eb1b4ed088ec4a1bad28ffe6200a24e4,
title = "Near-real-time precipitation virtual sensor using NEXRAD data",
abstract = "In this demonstration paper, we describe the technologies and implementations that allow near real-time creation of new virtual precipitation sensors using NEXRAD Level II streaming data at user-specified point locations and time intervals in an integrated digital watershed with a Google Map-based web interface. The spatiotemporal and thematic transformation steps to produce such new time series data stream are implemented as a set of scientific workflows. A streaming data ontology is developed to handle temporal proximity concepts such as {"}previous{"} and {"}next{"} for irregular temporal data streams. Data and metadata management is provided by a semantic content management middleware. The new point-based virtual sensor can lower the barriers of using NEXRAD data for many hydrological applications.",
keywords = "Digital watershed, NEXRAD, Ontology, Precipitation, Spatiotemporal and thematic transformation, Virtual sensor, Workflow",
author = "Yong Liu and Hill, {David J.} and Alejandro Rodriguez and Luigi Marini and Rob Kooper and Joe Futrelle and Barbara Minsker and Myers, {James D.}",
year = "2008",
doi = "10.1145/1463434.1463528",
language = "English (US)",
isbn = "9781605583235",
series = "GIS: Proceedings of the ACM International Symposium on Advances in Geographic Information Systems",
pages = "523--524",
booktitle = "Proceedings of the 16th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM GIS 2008",
note = "16th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, ACM GIS 2008 ; Conference date: 05-11-2008 Through 07-11-2008",
}