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# October 2018: Hurricane Michael

## National Geodetic Survey damage assessment imagery available online.

From October 11-14, 2018, the National Geodetic Survey (NGS) collected 9,580 aerial damage assessment images covering approximately  4,153 square miles in the aftermath of Hurricane Michael. Imagery was collected in specific areas identified by NOAA in coordination with FEMA and other state and federal partners. Collected images are available to view online via the NGS aerial imagery viewer. View tips on how to use the imagery viewer. 

A team of NOAA aviators and sensor operators captured the images using specialized remote-sensing cameras aboard NOAA Office of Marine and Aviation Operations'  King Air aircraft flying above the area at an altitude of **5,500 feet**. 

NOAA's aerial imagery aids safe navigation and captures damage to coastal areas caused by a storm. Aerial imagery is a crucial tool to determine the extent of the damage inflicted by flooding, and to compare baseline coastal areas to assess the damage to major ports and waterways, coastlines, critical infrastructure, and coastal communities. This imagery provides a cost-effective way to better understand the damage sustained to both property and the environment.

## **Available Imagery**

View NOAA Emergency Response Imagery collected on the following days:

            - October 11 :  Mobile Bay to St. George Island, Florida, and over Panama City, Florida.
            - October 12 :  Major transportation routes along the path of hurricane force winds; several localities in Northern Florida and Southern Georgia.
            - October 13 :  Outer coast from St. George Island east to Cedar Key, Florida; Bonifay, Chipley, and the Gulf Intracoastal Waterway from West Bay to Point Washington, Florida.
            - October 14 :  Between SR-20 and I-10; areas North of I-10 and West of Lake Seminole; coastal areas West of Panama City; and inland areas near Apalachicola, Florida. 

## **Before/After Imagery**

Select the round icon with directional arrows using your mouse (or your finger) and slide back and forth to view a "before and after" comparison. "Before" imagery is provided by Mapbox, Digital Globe, and OpenStreetMap; "After" imagery was captured by NOAA's National Geodetic Survey in the aftermath of Hurricane Michael. View tips on how to use the imagery viewer

Mexico Beach, Florida | View this location on the map. 

Beacon Hill, Florida | View this location on the map. 

Near Bayou George, Florida | View this location on the map. 

Tyndall Air Force Base, Florida | View this location on the map. 

## **Tips on Navigating the NGS Emergency Response Imagery Viewer**

This is a sample of the NGS aerial imagery viewer to illustrate how you can use this mapping tool to locate imagery.

            - 1. Zoom in/out.  Plus and minus buttons are located in the top left corner of the image viewer. Tap or click on the appropriate symbol to control the zoom level of the map. The dynamic map zooms in or out from the center point. You can change the location of the map by dragging on the map with your finger or using your fingers on a mobile device.
            - 2. Search for a specific location.  Underneath the zoom controls in the upper left corner, you will find a magnifying glass. Use this tool to search for a specific location. 
            - 3. Available Imagery.  Available NOAA imagery may be difficult to see when you first look at a map. Here, you can see the available aerial imagery near Houston, Texas. If you don't see any images on the map, try zooming in closer to the area you are interested in inspecting or search for a specific location.
            - 4. Available images, listed by date collected by NOAA aircraft.  On the top right corner of the map viewer, you will see an icon with three stacked rectangles, which indicates available map layers. Select this button to toggle the view of the base layer of the map between street view and satellite view. This button also reveals a list of all available imagery, listed by the date the images were collected by NOAA aircraft. 
            - For Advanced Users:  Note that users may construct a custom URL for the imagery viewer by entering a known latitude and longitude in decimal degrees, along with a selected zoom level. For example, the following link will show Wilmington International Airport (ILM) in North Carolina. This URL will be "zoomed in" to level 16, which equates to about 2.4 meter resolution, at the coordinates for the airport, 34.2674 degrees latitude and -77.9020 degrees longitude:   https://storms.ngs.noaa.gov/storms/michael/index.html#16/34.2674/-77.9020 

National Geodetic Survey Imagery: Hurricane Michael

Tips on Viewing National Geodetic Survey Aerial Imagery

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###### More **Information**

          - FEMA: Hurricane Michael Resources
          - National Geodetic Survey Emergency Response Imagery
          - National Geodetic Survey Remote Sensing Division
          - NOAA Office of Marine and Aviation Operations
          - NOS Aerial Photography and Shoreline Mapping

Did you know?

NOAA's National Geodetic Survey is the U.S. Government source for precise latitude, longitude, and elevation measurements. The NOAA fleet of ships and aircraft is operated, managed, and maintained by the NOAA Office of Marine and Aviation Operations, which includes commissioned officers of the NOAA Corps and civilian wage mariners.

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