Mauna Kea Weather Data
The VLBA makes weather data from the MK site available for download from
https://ops.vlba.nrao.edu/mkweather/current.mk.weather . This is at the request of the University of Hawaii which operates a
weather center specific to the summit of Mauna Kea. This web page is updated every 15 minutes by a cron job run by user vlbamon on computer elbow. The cron job runs a bash script
/users/vlbamon/vlba/bin/mk.weather
which in turn runs
db2wx
which places a text file with recent weather data into
/home/ops.vlba.nrao.edu/content/mkweather
. Both the bash script and
db2wx
are maintained in the
nraodifxdb repository. Both
db2wx
and
mk.weather
should be executable for proper functionality. Note that the cron entry is updated with
crontab -e
. The entry for this service should look like:
*/15 * * * * /bin/sh /users/vlbamon/vlba/bin/mk.weather > /dev/null
The data file presented contains the following space-separated columns of data:
Column |
Value |
Units |
1 |
Antenna name |
|
3 |
Temperature |
C |
5 |
Dew Point |
C |
8 |
Rainfail |
cm since midnight |
7 |
Wind direction |
Deg E of N |
6 |
Wind speed |
m/s |
9 |
Wind gust |
m/s |
4 |
Pressure |
mBar |
2 |
Modified Julian Days |
UTC days |
--
WalterBrisken - 2021-04-13