Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Research Field Required Precision Time for 54bits
-------------- ------------------ ---------------
1. Radio pulsar timing 0.1 microseconds over years 50 years
2. Astronomical X-ray data 0.01 microseconds over years 5 years*
3. Planet Ephemerides 1 microseconds over decades 500 years
4. Laser/Atomic Spectroscopy 0.1 femtoseconds over msec 1 second*
5. Fusion 1 nanoseconds over seconds 1 month
6. Neutrino detection 1 millisecond over decades 500,000 years#
* Already exceeded
# Unlikely to exceed (my opinion)
The point is that there needs to a hierarchy of time levels exceeding 2, as
as pack@acd.ucar.edu as proposed.
I doubt I will respond to the next question (Does anybody know of any
datasets requiring ...?).
I am a new user of netCDF. I was attracted to it because it had no inherent
properties dedicated to a particular discipline, like FITS, for example.
I hope the developers keep this discipline-free attribute ranked high as they
decide how to improve a useful system.
=Fred Knight (INTERNET:knight@ll.mit.edu)