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Hurricane Effects on the Hurricane Effects on the

Hurricane Effects on the - PowerPoint Presentation

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Uploaded On 2018-01-15

Hurricane Effects on the - PPT Presentation

Outer Banks Landform Change of Hurricane I sabel on Hatteras Island North Carolina Barrier islands stretching from Virginia to North Carolina and includes most of North Carolinas coastline ID: 623541

island hatteras cross classification hatteras island classification cross hurricane boolean outer flooding north cover area happen questions washout climate land sea table

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Presentation Transcript

Slide1

Hurricane Effects on the Outer Banks

Landform Change of Hurricane

I

sabel on Hatteras Island

North CarolinaSlide2

Barrier islands stretching from Virginia to North Carolina and includes most of North Carolina’s coastline.The Outer Banks (OBX)Slide3

Barrier island in Outer BanksDivides Atlantic Ocean & Pamlico Sound85.56 squares miles4,001 residents in 2000 censusKnown for sport fishing, surfing, windsurfing, kiteboardingMany resorts and vacation rentalsHatteras IslandSlide4

TemperateMild but windy wintersCooler than inland summersProne to hurricanes ClimateSlide5

Largest in 2003 season51 total indirect deathsWidespread wind and storm surge damageNC landfall as Category 2 Hurricane$170 million NC damagesHurricane IsabelSlide6

Hatteras Island washout (USGS)Slide7

Illustrate land cover changes on Hatteras Island before and after IsabelMultiple class changesLand to sea changesExplore why certain areas are more prone to damage Why was Hatteras Inlet made where it was?Project ObjectivesSlide8

Downloaded Landsat 5 imageryUnzip filesLoad and stack bands in ErdasMethodologySlide9

Unsupervised 11 classesSlide10

Image clipSlide11

Import into

IdrisiSlide12

ReclassSlide13

Cross ClassificationSlide14

BooleanSlide15

Boolean Cross ClassificationSlide16

DEMSlide17

Cross Classification TableSlide18

AreaSlide19

Boolean Cross Classification TableSlide20

Boolean AreaSlide21

Discussion

317 hectares of land lost to erosion/floodingSlide22

Hatteras Inlet and FloodingSlide23

Why did washout happen?Why did it happen here?Why not further up or down shore?What made this section so vulnerable?Why did flooding occur where it did?Questions AskedSlide24
Slide25
Slide26

Elevation and vegetation cover are very crucial factorsImportant to predict and prepare areas of high riskHow will climate change and sea level rise influence?Understand today -> Understand the futureConclusionSlide27

Questions?