| rerddap-package {rerddap} | R Documentation |
General purpose R client for ERDDAP servers
NOAA's ERDDAP service holds many datasets of interest. It's built on top of
OPenDAP http://www.opendap.org/. You can search for datasets via
ed_search, list datasets via ed_datasets,
get information on a single dataset via info, then get
data you want for either tabledap type via tabledap, or
for griddap type via griddap.
tabledap and griddap have different interfaces to query for data, so
tabledap and griddap are separated out as
separate functions even though some of the internals are the same. In
particular, with tabledap you can query on/subset all variables, whereas
with gridddap, you can only query on/subset the dimension varibles (e.g.,
latitude, longitude, altitude).
With griddap data via griddap you can get a lot of
data quickly. Try small searches of a dataset to start to get a sense for
the data, then you can increase the amount of data you get. See
griddap for more details.
Scott Chamberlain myrmecocystus@gmail.com