M
Michael Uddstrom
Researcher at National Institute of Water and Atmospheric Research
Publications - 38
Citations - 1471
Michael Uddstrom is an academic researcher from National Institute of Water and Atmospheric Research. The author has contributed to research in topics: Data assimilation & Ensemble Kalman filter. The author has an hindex of 15, co-authored 38 publications receiving 1319 citations. Previous affiliations of Michael Uddstrom include Wellington Management Company.
Papers
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Journal ArticleDOI
Hydrological data assimilation with the ensemble Kalman filter: Use of streamflow observations to update states in a distributed hydrological model
Martyn P. Clark,David E. Rupp,Ross Woods,Xiaogu Zheng,Richard P. Ibbitt,Andrew G. Slater,Jochen Schmidt,Michael Uddstrom +7 more
TL;DR: In this article, the authors describe an application of the ensemble Kalman filter (EnKF) in which streamflow observations are used to update states in a distributed hydrological model and demonstrate that the standard implementation of the EnKF is inappropriate because of non-linear relationships between model states and observations.
Journal ArticleDOI
On the use of high‐resolution satellite data to describe the spatial and temporal variability of sea surface temperatures in the New Zealand region
Michael Uddstrom,Niles A. Oien +1 more
TL;DR: In this article, a high-resolution (1.1 km) regional data set of satellite-derived sea surface temperatures (SST) is developed and validated against drifting and moored buoy data.
Journal ArticleDOI
The deep propagating gravity wave experiment (deepwave): an airborne and ground-based exploration of gravity wave propagation and effects from their sources throughout the lower and middle atmosphere
David C. Fritts,Ronald B. Smith,Michael J. Taylor,James D. Doyle,Stephen D. Eckermann,Andreas Dörnbrack,Markus Rapp,Bifford P. Williams,P.-Dominique Pautet,Katrina Bossert,Neal R. Criddle,Carolyn A. Reynolds,P. Alex Reinecke,Michael Uddstrom,Michael J. Revell,Richard Turner,Bernd Kaifler,Johannes Wagner,Tyler Mixa,Christopher G. Kruse,Alison D. Nugent,Campbell D. Watson,Sonja Gisinger,Steven M. Smith,Ruth S. Lieberman,Brian Laughman,James J. Moore,William O. J. Brown,Julie Haggerty,Alison Rockwell,Greg Stossmeister,Steven F. Williams,Gonzalo Hernandez,Damian J. Murphy,Andrew R. Klekociuk,Iain M. Reid,Jun Ma +36 more
TL;DR: The Deep Propagating Gravity Wave Experiment (DEEPWAVE) was designed to quantify gravity wave dynamics and effects from orographic and other sources to regions of dissipation at high altitudes as discussed by the authors.
Journal ArticleDOI
Operational hydrological data assimilation with the recursive ensemble Kalman filter
Hilary McMillan,E. Ö. Hreinsson,Martyn P. Clark,Shailesh Kumar Singh,Christian Zammit,Michael Uddstrom +5 more
TL;DR: In this paper, a recursive ensemble Kalman filter (REnKF) was used to assimilate streamflow data in an operational flow forecasting system of seven catchments in New Zealand.
Journal ArticleDOI
The impact of climate fluctuation on food availability and reproductive performance of the planktivorous red‐billed gull Larus novaehollandiae scopulinus
James A. Mills,John W. Yarrall,Janet M. Bradford-Grieve,Michael Uddstrom,James A. Renwick,Juha Merilä +5 more
TL;DR: It is hypothesized that high primary productivity of inshore water near Kaikoura in winter, linked to a stable water column of coastal water and upwelling of additional dissolved inorganic nutrients, increases the availability of adult euphausiids to the red-billed gull as long as the coastal water is not replaced by offshore subtropical water intrusions of warmer, low-nutrient water.