National Geographic : 2013 Sep
CHINATOWN ALPHABET CITY SOHO GREENWICH VILLAGE FINANCIAL DISTRICT MIDTOWN CHELSEA TRIBECA 0mi 5 0km 5 THE BRONX QUEENS New York City BROOKLYN MANHATTAN STATEN ISLAND A vulnerable city Sandy's 2012 storm-surge extent (white line) Possible 2100 storm-surge extent (blue area) counterclockwise rotation Storm surge CONN. N.Y. N.J . DEL. SuperstormSandy’strack New York Bight New York City The shape of the surround- ing coastline makes New York particularly vulnerable to storm surges: The New York Bight, an indentation in the shoreline, funnels them directly at the city. N Building potentially affected This Con Edison power station was flooded in October 2012 by Sandy, leaving much of Manhattan below 30th Street in darkness. RYAN MoRRIS, MATTHEW TWoMBlY, ANd MAggIE SMITH, NgM STAff ART: IxTRACT gMBH, BERlIN. SoURCES: NoAA; U.S. ARMY CoRpS of ENgINEERS; NEW YoRk CITY dEpARTMENT of CITY plANNINg; NEW YoRk CITY offICE of EMERgENCY MANAgEMENT; USgS; NATIoNAl HURRICANE CENTER; NATIoNAl WEATHER SERvICE; STEvENS INSTI- TUTE of TECHNologY (dIgITAl ElEvATIoN ModEl); RENAISSANCE CoMpUTINg INSTITUTE, UNIvERSITY of NoRTH CARolINA AT CHApEl HIll; fEMA (2012 SToRM-SURgE ExTENT) Methodology: This estimated footprint of a Sandy-like storm surge in 2100 assumes high tide and a sea-level rise of five feet. It was produced using a National Weather Service storm-surge model called SloSH and a U.S . Army Corps of Engineers procedure for translating the model’s coarse output into a detailed inundation map. It doesn’t consider future changes in coastal terrain that would affect a storm surge, such as erosion of beaches or sandbars. MANHATTAN ModEl pRovIdEd BY pICToMETRY (2009, 2012) on our digital editions, zoom in on three vulnerable parts of the city and see how higher seas would affect a storm surge.