About
NARVAL (NERSC ARctic VirtuAl Laboratory) is a visualisation portal for Earth observation data in
the high latitude seas and Arctic Ocean in a Polar stereographic projection. It provides users
with a convenient mean to collocate and explore multi-satellite sensor data jointly with in-situ
data and model fields.
The data is processed and brought into NARVAL by
GeoSPaaS
, a Python tool for cataloguing, downloading and processing geospatial data, by
NERSC
, licensed under the
GNU General Public License (GPLv3)
NARVAL is funded by the Nansen Center's basic institutional funding through the Research Council of
Norway grant #342624.
Disclaimer
This website is in a regular state of development, and will include updates of new satellite
products, in-situ data and model fields.
We do not guarantee the accuracy or reliability of the information presented, nor any
responsibility for the use of this website.
NERSC does not provide support for external use.
The timeline shows the currently selected datetime and timespan (the
width of the date range centered around the currently selected
datetime).
It also provides an overview of the temporal coverage for the selected
data layers available in the geographical area displayed on the map.
To change the current datetime you can:
- Click on a day, month, or year
- Scroll (or drag a finger) over the days, months, or years
-
Use
and
keys
The Layers panel contains a searchable catalog of data layers to show
on the map.
There are several ways to scale the desired region on the map.
To move around the map you can click and drag with a mouse or a finger.
To zoom you can:
- Use the mouse wheel
- Use the zoom buttons on the right side of the screen
- Double-click, double-tap, or pinch on the map
The title bar buttons, from left to right, allow you to:
- Change the background base map
-
Show the colorbar and extrema for the displayed data and manage
their interactive rendering parameters (transparency, stacking order
and filtering for each layer)
-
Manage annotations (aka. shapes) with filtering (by type and by
text) and bulk edit, delete, and export capabilities
- Manage bookmarked case studies (aka. hotspots)
- Get a short URL for sharing the current view (without your annotations)
- Import and export your preferences and personal data (stored in this browser)
- Give feedback
- Access help dialogs
The NARVAL portal quick tour is finished!
All the tools can be used in any order.
Now you can continue to explore by yourself!