Add your photos

Want to join a great community of citizen scientists, and help researchers better understand Bay Area flooding?  

The King Tides Project needs your photos of the year’s highest high tides!  The pictures you take will help scientists better understand which areas are most at risk of flooding and future sea level rise. Researchers will compare your photos of the high tide against computer simulations of flooding to see how well these simulations match reality.  This is a fun, easy way for you to provide important information that will help future sea level rise adaptation planning efforts in the Bay Area.

It’s easy to participate:

  1. Choose one of the areas circled in red on the below map (they show where researchers need more information about actual flood conditions during high tides). You can also view a larger interactive version of the map by clicking here
  2. Snap your pictures, following the directions at the bottom of this page.
  3. Upload your photos directly from your mobile phone or desktop, using the instructions below.
  4. Explore and create your own community maps and stories, using ArcGIS online. 

map - most needed areas



The following introductory video demonstrates how to add a new observation to the map with the desktop app

  1. Access the King Tides Project ESRI map page
  2. To add your photo, zoom in on the map to find the exact location of where the picture was taken.
  3. Click on the filter/Edit icon (the one with the pencil) in the upper right hand corner of the page, right of the magnifying glass.
  4. Once the menu is expanded bellow, click on the Observation icon.
  5. Click on the desired location on the map to add your observation
  6. Fill out the form and upload your image

Mobile Device (instructions below are written with an Android phone):

The following introductory video demonstrates how to add a new observation to the map using your mobile phone

  1. Download the ArcGIS App for FREE from the Google Play Store or the Apple App Store and install the application.
  2. Open the application and click on the magnify glass in the upper left hand corner.
  3. In the next screen, click on the magnify glass in the right hand corner, and enter CKTI to search for the king tides project map.
  4. Click on the pencil icon, and then the observation icon to enter the required information.
  5. Click on the paper clip icon near the top to take your photo.

Go one step further and tell a story by building your own map using the viewer.

  1. Head to the King Tides project map on ArcGIS Online.
  2. Zoom out to explore all the photos that have been taken by other contributors like you.
  3. Find the filter function (click on the Content icon, hover your mouse over the term Citizen Science Photos to see a small triangle next to the term, and select Filter).
  4. In the Filter window, select project name in the first dropdown menu, and Bay Area Flood Model Validation Model in the third dropdown menu.  This will allow us to see only the photos that are part of the Bay Area Flood Model Validation project.
  5.  Click on an observation point to examine its attribute information and photo (hyperlink).
  6. Sign into your ArcGIS online account (you can create a FREE account here if you do not have one) by clicking on sign in found in the upper right hand corner.
  7. Use the Add function, and select Search for Layers to Find the Median Household Income layer provided by ESRI and add it to your map. Be sure to select ArcGIS Online for the In field.
  8. Click on Legend to see the meaning of the different colors in your map.
  9. Click on Save to save your map.
  10. Click on Share (and check Everyone to make your map public).  You can now share your own map with others using the provided Link or by sharing it on Facebook or Twitter. 

Directions for Citizen Science Photographers

To contribute to The King Tides Project, you just need to follow these easy directions:

  • Arrive at your chosen site a few minutes early.  Researchers can only use images that are taken within 45 minutes of the high tide peak, so the total window of time to take photographs is 1.5 hours (45 minutes before the peak, and 45 minutes after the peak)
  • Switch on the GPS device in your phone or camera, so that your photo will include the longitude and latitude coordinates
  • Scout out the area to ensure safety
  • Snap a couple of shots. Try to include landmarks or infrastructure (bridges, roads, sidewalks) so that we can understand the orientation and get some clues about the depth of the water
  • Take note of your orientation, the weather, and anything interesting that you see (there won’t be a test, but that information is helpful to us)
  • Extra Credit:  We can always use high tide / low tide comparisons, so if you have the time to come back to the same spot during the low tide please compare!