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    Improvements in Land-Use Classification for Estimating Daytime Surface Temperatures and Sea-Breeze Flows in Southern California

    Source: Earth Interactions:;2016:;volume( 020 ):;issue: 016::page 1
    Author:
    Sequera, Pedro
    ,
    González, Jorge E.
    ,
    McDonald, Kyle
    ,
    LaDochy, Steve
    ,
    Comarazamy, Daniel
    DOI: 10.1175/EI-D-14-0034.1
    Publisher: American Meteorological Society
    Abstract: nderstanding the interactions between large-scale atmospheric and oceanic circulation patterns and changes in land cover and land use (LCLU) due to urbanization is a relevant subject in many coastal climates. Recent studies by Lebassi et al. found that the average maximum air temperatures during the summer in two populated California coastal areas decreased at low-elevation areas open to marine air penetration during the period of 1970?2005. This coastal cooling was attributed to an increase in sea-breeze activity.The aims of this work are to better understand the coastal flow patterns and sea?land thermal gradient by improving the land-cover classification scheme in the region using updated airborne remote sensing data and to assess the suitability of the updated regional atmospheric modeling system for representing maritime flows in this region. This study uses high-resolution airborne data from the NASA Hyperspectral Infrared Imager (HyspIRI) mission preparatory flight campaign over Southern California and surface ground stations to compare observations against model estimations.Five new urban land classes were created using broadband albedo derived from the Airborne Visible and Infrared Imaging Spectrometer (AVIRIS) sensor and then assimilated into the Weather Research and Forecasting (WRF) Model. The updated model captures the diurnal spatial and temporal sea-breeze patterns in the region. Results show notable improvements of simulated daytime surface temperature and coastal winds using the HyspIRI-derived products in the model against the default land classification, reaffirming the importance of accounting for heterogeneity of urban surface properties.
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      Improvements in Land-Use Classification for Estimating Daytime Surface Temperatures and Sea-Breeze Flows in Southern California

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4216215
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    contributor authorSequera, Pedro
    contributor authorGonzález, Jorge E.
    contributor authorMcDonald, Kyle
    contributor authorLaDochy, Steve
    contributor authorComarazamy, Daniel
    date accessioned2017-06-09T16:47:07Z
    date available2017-06-09T16:47:07Z
    date copyright2016/06/01
    date issued2016
    identifier otherams-74034.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4216215
    description abstractnderstanding the interactions between large-scale atmospheric and oceanic circulation patterns and changes in land cover and land use (LCLU) due to urbanization is a relevant subject in many coastal climates. Recent studies by Lebassi et al. found that the average maximum air temperatures during the summer in two populated California coastal areas decreased at low-elevation areas open to marine air penetration during the period of 1970?2005. This coastal cooling was attributed to an increase in sea-breeze activity.The aims of this work are to better understand the coastal flow patterns and sea?land thermal gradient by improving the land-cover classification scheme in the region using updated airborne remote sensing data and to assess the suitability of the updated regional atmospheric modeling system for representing maritime flows in this region. This study uses high-resolution airborne data from the NASA Hyperspectral Infrared Imager (HyspIRI) mission preparatory flight campaign over Southern California and surface ground stations to compare observations against model estimations.Five new urban land classes were created using broadband albedo derived from the Airborne Visible and Infrared Imaging Spectrometer (AVIRIS) sensor and then assimilated into the Weather Research and Forecasting (WRF) Model. The updated model captures the diurnal spatial and temporal sea-breeze patterns in the region. Results show notable improvements of simulated daytime surface temperature and coastal winds using the HyspIRI-derived products in the model against the default land classification, reaffirming the importance of accounting for heterogeneity of urban surface properties.
    publisherAmerican Meteorological Society
    titleImprovements in Land-Use Classification for Estimating Daytime Surface Temperatures and Sea-Breeze Flows in Southern California
    typeJournal Paper
    journal volume20
    journal issue16
    journal titleEarth Interactions
    identifier doi10.1175/EI-D-14-0034.1
    journal fristpage1
    journal lastpage32
    treeEarth Interactions:;2016:;volume( 020 ):;issue: 016
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian