Urban Ocean Observatory at Davidson Laboratory
Interactive Google Earth Visualization
of the Hydrodynamics
in and around New York & New Jersey Harbor

Present Marine Conditions in and around New York Harbor.

Maps predicted by the Stevens NYHOPS model:
Surface Current vectors, near-surface Wind Barbs, Wave Heights and more.
Click on the image below to load and look at the kmz file in Google Earth

Latest in situ observations stored in the Stevens database:
Surface Current vectors from ADCPs, near-surface Wind Barbs,
and other hydrometeorological parameters with links to data pages.
Click on the image below to load and look at the kmz file in Google Earth

Today's hourly NYHOPS forecast may be viewed using Google Earth by clicking on the image below. Google Earth will download images as needed.

Below are links to kmz files which include all images.
They take longer to start in Google Earth but will need to be downloaded only once.
In movie mode, please allow enough time for GE to register all the images.

3D Visualization of Oceanographic Forecasts

The Stevens Institute of Technology has a rich data catalog of meteorological and oceanographic observations and predictions from the NYHOPS system that is actively utilized by diverse groups including Office of Emergency Management, Emergency Management Service personnel, the navigation community, the fishing and recreational maritime community, and oceanography researchers within and outside the east coast of the US. The data are now accessible in Google Earth, greatly expanding the potential user audience while providing additional options to users of the traditional NYHOPS website.

Google Earth features (such as panning, zooming, and fly-throughs) allow the user to view georeferenced data, such as the NYHOPS forecasts, interactively in a realistic, virtual 3D world. Further, oceanographic phenomena (including freshwater events) are easily explored through 24-hour animations of forecasted fields such as currents, temperature, and salinity.

Future developments include automatic generation and dissemination of navigation route maps. These maps will be used to aid ships in safe passage through the harbor approaches and interior waters. (An example transit of a ship moving north from the anchorage into NY Harbor and lower Manhattan may be seen here.) The route maps will also be used by devices such as autonomous unmanned underwater vehicles.

Benefits of 3D Visualization Tools to Users

NYHOPS predicts marine weather conditions (water elevation, 3D currents, and surface waves) that are of interest to the maritime community. The system also forecasts coastal and inland flooding. Upwelling and downwelling events that affect nutrient replenishment are also predicted. Other NYHOPS variables of specific local interest include salinity for marshland health, chromophoric dissolved organic carbon for underwater visibility, speed of sound for underwater acoustics, etc.

With our experimental Google Earth-based product, under development, a user can easily determine the precise geographic location (latitude/longitude) of an event or condition in which he or she is interested, and then follow that event as it unfolds across 24 hours. Since multiple parameters can be selected at once, direction of currents can be overlaid on top of sea surface salinity maps, for example, to track the spreading of a coastal plume.


This product is a collaborative effort between Jet Propulsion Laboratory (Dr. Ashit TalukderAnand Panangadan) and Stevens Institute of technology (Dr. Alan Blumberg, Dr. Nickitas Georgas, Dave Runnels)

Google Earth is required to use this, and may be downloaded here Support provided by NASA Applied Information Systems Technology (AIST) in the Earth Science Technology Office (ESTO) under AIST-QRS.