title: Analysis of bloom conditions in fall 2013 in the Strait of Hormuz using satellite observations and model simulations.
abstract: In this study an algal bloom event in fall 2013 in the Strait of Hormuz was thoroughly investigated using satellite remote sensing and hydrodynamic modeling. The motivation of this study is to deduce ambient conditions prior to and during the bloom outbreak and understand its trigger. Bloom tracking was achieved by sequential MODIS imagery and numerical simulations. Satellite observations showed that the bloom was initiated in late October 2013 and dissipated in early June 2014. Trajectories of bloom patches were simulated using a Lagrangian transport model. Model-based predictions of bloom patches' trajectories were in good agreement with satellite observations with a probability of detection (POD) reaching 0.85. Analysis of ancillary data, including sea surface temperature, ocean circulation, and wind, indicated that the bloom was likely caused by upwelling conditions in the Strait of Hormuz. Combined with numerical models, satellite observations provide an essential tool for investigating bloom conditions.
authors.affiliation: Department of Chemical and Environmental Engineering, Masdar Institute of Science and Technology, PO Box 54224, Masdar City, Abu Dhabi, United Arab Emirates. Electronic address: jzhao@masdar.ac.ae.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Department of Chemical and Environmental Engineering, Masdar Institute of Science and Technology, PO Box 54224, Masdar City, Abu Dhabi, United Arab Emirates.
authors.forename: Marouane
authors.initials: M
authors.lastname: Temimi
authors.affiliation: Department of Chemical and Environmental Engineering, Masdar Institute of Science and Technology, PO Box 54224, Masdar City, Abu Dhabi, United Arab Emirates; Center for Prototype Climate Modeling (CPCM), New York University Abu Dhabi, Saadiyat Island, PO Box 129188, Abu Dhabi, United Arab Emirates.
authors.forename: Muchamad
authors.initials: M
authors.lastname: Al Azhar
authors.affiliation: Department of Chemical and Environmental Engineering, Masdar Institute of Science and Technology, PO Box 54224, Masdar City, Abu Dhabi, United Arab Emirates.
authors.forename: Hosni
authors.initials: H
authors.lastname: Ghedira
mesh_terms: D004784:Environmental Monitoring; D005068:Eutrophication; D019156:Indian Ocean; D008962:Models, Theoretical; D063809:Satellite Imagery; D012621:Seasons; D013696:Temperature; D014872:Water Movements; D014919:Wind
keywords: Algal bloom; Arabian Gulf; MODIS; Ocean color remote sensing; ROMS