Metadata DB
Directory tree
group
attributes
data files
variables (numeric data)
supplementary
text files
description = “……..”
param1 = value1
param2 = [val21,val22]
•Metadata
–name-value attributes; with a few standard field names
–geospatial- and time-coordinate info
–size, user info etc
•Directory structure (inherit metadata from parent directories)
•Generated by automatic scan (with a command)
–variables: reading attributes through GPhys
–directories: directory name and “Readme”-type texts
1
n
1
n
spatial_and_
temporal_
attributes
keyword
_attributes
1
n
variables
directories
1
n
Treated as
directories