ERDDAP has an email/URL subscription system so that you can be notified immediately whenever
a dataset changes (for example, whenever new data is added to a near-real-time dataset).The system can send you an email or contact a URL that you specify.
See also this comparison
with ERDDAP's RSS subscription service.
ERDDAP will store the information that you provide, including your email address.
ERDDAP will treat the information that you provide as confidential and will not release it to
These subscriptions have nothing to do with getting the actual data (see
ERDDAP's home page).
ERDDAP is very good at detecting changes to gridded datasets because it can detect when
the axis values (e.g., the time values) change.
ERDDAP is not very good at detecting changes to tabular datasets because there are usually
no changes to the metadata when new data is added.
ERDDAP will detect if a dataset becomes unavailable (but perhaps not immediately).
ERDDAP will immediately detect when that dataset becomes available again.
No one and no organization associated with this ERDDAP makes any promises about the
suitability, reliability, or correctness of this service
(see ERDDAP's DISCLAIMERS).
Don't abuse this system by entering someone else's email address or a fake email address! If you do, you may be blocked from using ERDDAP.