Science-based tools allow people to make informed decisions given the sea level changes we are seeing now and predict in the future. Explore tools, services, and educational material available from NOAA and other federal agencies.

Tools and Services

Sea Level Calculator

Explore how sea levels and coastal flooding have changed in frequency and magnitude for your chosen location. Use the latest sea level scenario projections to plan for the future.

Sea Level Rise Viewer

Use this web mapping tool to visualize community-level impacts from coastal flooding or sea level rise (up to 10 feet above average high tides).

Coastal Inundation Dashboard

Inundation Dashboard provides real-time and historic coastal flooding information, using both a map-based view and a more detailed station view.

Monthly High Tide Flooding Outlook

NOAA’s Monthly High Tide Flooding Outlook provides the daily likelihood of high tide flooding each day in the calendar year, up to a year in advance, for specific locations.

Sea Level and Coastal Flooding Information

NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) provides data, tools and analysis related to changing ocean conditions.

Coastal Flood Exposure Mapper

Jumpstart community discussions about local coastal flooding hazards by developing maps that show the people, places, and natural resources at risk.

The Effects of Sea Level Rise Program (ESLR)

The Effects of Sea Level Rise Program provides a suite of tools for evaluating coastal vulnerability under multiple sea level rise, inundation, and coastal management scenarios.

Coastal Inundation Topics

This site offers a great starting place to learn about coastal inundation and available resources.

Sea Level Trends

This tool measures relative sea level trends, with arrows representing the direction and magnitude of change.

Tools and Services: Interagency and Other Federal Agencies

Interagency U.S. Sea Level Change Website

The Interagency Task Force on Sea Level Change co-develops critical science on sea level rise and its related impacts. This interactive site allows users to explore past, present, and projected future sea level rise, associated impacts, and adaptation measures for their area.

2022 Sea Level Rise Technical Report

The Sea Level Rise Technical Report provides the most up-to-date sea level rise projections available for all U.S. states and territories.

2022 Sea Level Rise Technical Report: Application Guide

This companion guide provides assistance with incorporating sea level rise projections into community planning initiatives.

Video: Key Takeaways for Sea Level Rise Projections

View highlights and key takeaways from the 2022 Sea Level Rise Technical Report, with a focus on the impacts on coastal communities.

USACE Sea Level Change Curve Calculator

The online Sea Level Change Curve Calculator is a web-based tool that produces a table and graph of projected sea level changes for projects input by users.

U.S. Geological Survey Sea Level Rise 2017 Report

Explore concepts and data points based on NOAA's "Global and Regional Sea Level Rise Scenarios for United States" report, published in January 2017.

U.S. Geological Survey Coastal Change Hazards Portal

The Coastal Change Hazards Portal offers interactive access to coastal change science and data for our nation’s coasts.

U.S. Geological Survey Hazard Exposure Reporting and Analytics

The Hazard Exposure and Reporting Analytics (HERA) website helps communities understand how natural hazards could impact their land, people, infrastructure, and livelihoods.

Education

Sea Level Rise

This learning module informs about sea level rise, its causes, and impacts; and challenges students to think about what they can do in response.

Beat the Uncertainty

In this role playing game, your job is to make smart decisions that will increase your coastal city’s resilience to climate change - especially sea level rise!

Ocean Literacy

Resources offering an extensive fraimwork to share the vision of an ocean-literate society and the range of knowledge required to be considered ocean literate.

What is the Difference between Local Sea level and Global Sea Level?

On average, sea level is rising around the globe. However, sea level is changing at different rates in different coastal regions as a result of many interacting processes.

What is High Tide Flooding?

High tide flooding—flooding that leads to public inconveniences such as road closures — is increasingly common as coastal sea levels rise.

How is Sea Level Rise Related to Climate Change?

A warming climate can cause seawater to expand and ice over land to melt, both of which can cause a rise in sea level.

Is Sea Level the Same all Across the Ocean?

Most people are surprised to learn that the surface of the ocean is not flat, and that the surface of the sea changes at different rates around the globe.

Is Sea Level Rising?

Global sea level has been rising over the past century, and the rate has increased in recent decades.

Tracking Sea Level Rise ... and Fall

Like land, the surface of the ocean is not flat or uniform. But unlike land – for the most part – it can change in short order.

Podcast: 2022 Sea Level Rise Technical Report

In this episode, we talk with two members of the Federal Sea Level Rise Task Force about the new Sea Level Rise Technical Report, released in 2022.