January and March 2018 Nor'easter Storm Event Dashboard

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Detailed Description

The USGS Storm Event dashboard allows users to interact with and visualize high-water mark and storm sensor data points, and ‚Äčestimated flood extents from the January and March 2018 Nor’easter storm events. Users can also view the USGS 100-year Stillwater analysis‚Äčand compare these flood extents to the current FEMA national flood hazard layers. The dashboard is comprised of five elements. This presentation will describe these elements and demonstrate the different features and functionalities of the dashboard.

0:00 Introduction to the tool
0:59 Map View Window
3:52 Content Window
4:23 Coastal Profile Elevation Graph
5:11 Mean Water-Surface Elevation Graph
5:50 Filtering Window
7:10 Additional resources

Details

Date Taken:

Length: 00:07:58

Location Taken: US

Video Credits

Luke Sturtevant

Transcript

The USGS Storm Event Dashboard allows users to interact with and visualize high

watermark and storm sensor data points and estimate flood extents from the January

and March 2018 nor'easter storm events. Users can also view the USGS 100

years still water analysis and compare these flood extents to the current

FEMA national flood hazard layers.

The dashboard is comprised of five elements.

This presentation will describe these elements and demonstrate the

different features and functionality's of the dashboard.

First, the leftmost window that runs

the height of the dashboard is the

filter window and contains filtering options.

To the right of this window,

the remaining four elements divide

the dashboard into four quadrants.

Starting with the upper left and

moving clockwise,

they are the map view window.

The right content window.

The coastal profile elevation graph.

And the mean water surface elevation graph.

The demonstration of the dashboards

elements will begin with the map

view window located to the upper

right of the filtering window.

The map navigation bar in the upper

right of the map view window contains

customizable map options from right to left.

The navigation bar contains

a Search, Home, Legend, Layer,

and Basemap Gallery button.

The legend button shows the map

feature layer symbols and colors.

The colors are consistent throughout the dashboard

for data points, inundation maps, and graphs.

The layer button allows users to turn

on and off layers in the map view.

And the Basemap Gallery button shows all

the basemap options available to the user.

With the mouse scroll wheel,

the user is able to zoom in and

out of the map extent. Additionally,

the plus and minus button in the

lower right of the map view window

can also be used to zoom in and out.

The user can pan around the map extent

by clicking and dragging the map.

The Home button will return the

map to its original view extent.

The search function in the navigation

bar allows for fast map navigation to key places or addresses.

Clicking on the search button expands the tool,

allowing you to type in your location of interest.

Let's search Long Wharf in Boston.

As the map view changes the displayed

graphs and map elements update to show

available data within the frame of view.

Pop up information can be

accessed by clicking on the map

layers in the map view window.

The pop up window will appear in the

upper left corner of the map view window

under the selection cursor button.

The pop up window shows the water surface

elevation in feet, the data type.

And photographs of the storm sensors

or high water marks, if available.

The selection cursor allows users

to select all visible map layers.

The drop down menu shows the different

selection options available to the user.

The selection options are selected by point,

rectangle, lasso, circle, or line.

Once the user makes a selection,

if multiple data layers were included,

a pop up window will appear under

the selection cursor button listing

all selected layers.

You have the option to choose

one of the layers selected.

Your graphs and map content will

filter based on the selection.

An additional button showing the number

of map features selected and an 'x' to

clear the selection will appear to the

right of the selection cursor button.

To clear any map layer selections,

click the 'x' button.

The content window to the right of

the map view window is dynamically

updated to show the viewable

data point count and information

within the current map extent.

The data point information displayed

in this window is the same as the

pop up window and updates to reflect

selections made in the map view window.

Users are able to cycle through the

available information using the

left and right arrow buttons located

above the data point information.

You can see the information changes as we

scroll through a few of the data points.

The coastal profile elevation graph

in the lower right of the dashboard

is a dynamically updated graph

showing the elevation of each data

point along the coastal profile line.

The X axis is in miles along

the coastal profile line,

oriented from north to South,

and runs from Portland,

Maine to Eastham, Massachusetts.

The Y axis is the water surface elevation

in feet above the North American

vertical Datum of 1988 or NAVD88.

Individual or multiple data

points can be selected from this graph to

quickly filter the map and dashboard content.

To remove any selections,

deselect the points individually

or click anywhere within the graph

area to remove all selections.

The mean water surface elevation graph

in the lower left of the dashboard

shows the average elevation in feet

above NAVD88 for all data points

within the current map extent.

The data viewed in the graph updates

as the map extent has changed.

Note the data displayed in this graph

does not update based on selections

made within the map view window.

Individual or multiple storm events

can be selected from the bar graph

to quickly filter data points and all

dynamically updated content in the dashboard.

To clear any selections,

deselect the individual storm

events or click anywhere inside

the graph to remove all selections.

The filtering window to the left of

the map view has additional content

filtering options for the dashboard.

The filtering options in this

window are Select by storm event,

Select by data type,

Select by town or city,

and Filter data by elevation range.

Note, these data filters only filtered

data points and associated content.

They do not filter inundacion maps.

The inundation maps can be turned on

or off using the layer option in the

upper right of the map view window.

When you expand select by storm event,

you were able to search for a specific

storm event or you can select from

the list under the search bar.

There are also the options to

select all and reset below the

list of available storm events.

When you expand the select by data

type and select by town or city.

You will see they are set up similar

to the select by storm event option.

Each listing the available data types

and towns and cities respectively.

The filter data by elevation range is

a sliding bar with the option to adjust

from the right and left side of the bar,

and it has a minimum and maximum

elevation range of 6 to 11 feet.

The dashboard also hosts additional

resources in the tabs along the

bottom of the map view window.

When navigating to each you will see

the Related Publications tab provides

the link to U.S. Geological Survey

publications related to the January

and March 2018 nor'easter storm

events and data collection efforts.

The USGS High Watermark Guidance tab

provides helpful documentation on how

the USGS collects high watermarks

and storm data information.

The additional Resources tab provides

links to the USGS Short Term Network

Viewer which contains complete high

watermark in storm sensor data

for these storm events.