Our Data Search lets you browse our large and ever-expanding data archive, choose [data products], generate them and download them.
- Log in - You need to log in to search for data. If you haven't registered, it's easy to create a new account.
- Open NEPTUNE Data Search
- Choose a Data Source from the Data Source Selection panel.
- You can browse instruments by type, location, network topology, or project.
- Click an instrument to select it (a red marker will appear on the map)
- Select a Data Product
- Use the calendar icons to choose start and end times for the data you want to download.
- Choose data products for your instrument by selecting check-boxes in the product selection panel.
- Add to Cart
- Click Checkout; your data request will be processed for you to view and download.
- Once you have clicked Process Data Products you can continue with new searches.
- You can download multiple time periods for the same instrument.
- Data collected during commissioning phase (in step 2 click Annotations link) is not guaranteed to meet rigorous quality standards, as data continuity and instrument configurations fluctuated during this time.
Table of Content
- Data Search Help
- Finding Data
- Quick Instructions
- Detailed Instructions
- Step 1: Choose Data Source
- Instrument Selection Panel
- Step 2: Selecting Data Products
- Instrument Info
- Defining a Time Period
- Subsampling / Resampling
- Selecting Products
- Step 3: Viewing the Cart and Downloading Results
- Questions & Discussion
When you first open Data Search, you see a map and a data source selection panel:
- Choose an instrument from the selection panel, and its location is displayed on the map.
- Hover your mouse over an instrument pin on the map to see latitude, longitude and depth.
- Click the node icons for details on the node location.
The upper-left panel lets you browse the full list of instruments with data in our archive. Use the dropdown selector to display instruments by type, location, network topology or research project.
Refine the list of instruments using the Filter dropdown selector. This lets you choose water properties and other measured quantities of interest.
When you find the instrument you're looking for, select it by clicking on it.
Once you have selected an instrument, click the Step 2 button to choose:
- date and time periods
- data subsampling options
- data product types
When you select an instrument, its current and past locations are marked on the map. Find details and documentation for the instrument via the links on Step 2.
There are several options for defining the time period for your data request. You can click the calendar icons to choose start/end dates and enter hours and minutes in the time boxes. Or you can click the Custom... selector and choose time periods covering the last week, day, 2 hours or 10 minutes. The graph to the right shows data availability. Green shading indicates time periods for which data are available from your chosen instrument.
You can also zoom in on the data availability graph by clicking and dragging anywhere within the graph. In the above illustration, the initial data availability graph covers a period of time from 2009 into 2011. By clicking an dragging on a small segment of that graph, the availability graph was zoomed to cover only the time period between November 2009 - January 2010.
Unzoom to the full extent by double-clicking on the graph.
Resampling can be used to normalize the time axis of the data, summarize the data with min/max values, or, most importantly, significantly speed up your data request and shrink file sizes. You can resample by box-car ensemble averaging or min/max values. You can resample at time intervals ranging from from one minute to a day.
Various data product formats, such as MatLab 7, CSV, PNG plot, and Raw log file are available for your chosen instrument and its sensors. Further details on individual products can be obtained [here]. If you would like to see additional data products, please let us know. Click the check boxes to choose the ones you want.
When you have finished defining the time period, subsampling and product choices, click Generate Results.
As processing completes for each product, links appear allowing you to download the product.
To download your results:
- click the icons to download the files, or in the case of PNG plots, enlarge and view them.
- To download multiple files, first select the ones you want (by clicking the Download checkbox), then click the Download Selected Results button.
Metadata will automatically be generated with most data products. They contain important information regarding the actual data and data sources, the observatory, the instrument/sensor, and other background information. Once generated, they are shown as links to the file and can be downloaded for every data product.
In particular for long time series from several sensors that are combined in a single data file, Metadata list all contributing sensors and link to their calibration details and annotated data issues. Therefore, metadata are considered vital to interpret the scientific data and should be downloaded whenever possible.
You can also send us a help request by clicking the question mark icons in the requested data product list (in Step 3):
If you have comments, questions or requests related to the data search tool, please post them below by clicking Add Comment below or by adding a comment in our Help Discussion forum.