|
|
IPC - XII
|
tentative dates: Davos, 28 September -
16
October 2015
|
|
GENERAL INFORMATION
The Eleventh International
Pyrheliometer
Comparisons (ipc-xii)
are organized by the World Radiation Center (WRC) on behalf of the World
Meteorological
Organization (WMO). The IPC-XII are combined with the Regional Pyrheliometer
Comparisons
(RPCs) of all regions.
Online
registration is now open!
Please register before 30 July 2010 either online or by letter to:
International
Pyrheliometer
Comparisons
World Radiation
Center
Dorfstrasse 33
CH - 7260 Davos
Dorf
SWITZERLAND
If you have any administrative question please do not
hesitate
to contact Sonja Degli
Esposti,
Fax: +41 81 417 5100, Tel: +41 81 417 5134). For questions concernig
the
technical organization of the IPC-XII contact Wolfgang Finsterle, Fax: +41
81
417 5100, Tel: +41 81 417 5153).
The working language of
the comparisons
is
English.
|
|
LOCAL INFORMATION
The comparisons will
take place at the
Physikalisch
- Meteorologisches Observatorium Davos/World Radiation Center
(PMOD/WRC)
which is situated within walking distance from the village center and
railway
station of Davos Dorf. Public Transport connects Davos Dorf to Davos
Platz.
Davos is located in the mountains of Grisons - the
south-eastern
part of Switzerland.
The elevation is about 1600 meters above sea level and the average
daily
minimum temperatures in September are -1.1°C and -4.8°C in
October.
The average daily maximum temperatures reach 21.4°C and
18.6°C, respectively.
The
average sunshine duration is 55% of the possible sunshine duration. A
documentation
on Davos and its facilities will be distributed upon your arrival. Davos is the home of one of the largest
skiing and hiking resorts in the alps.
How to get to Davos
Switzerland possesses
an extensive and usually reliable railway
network. Intercity trains leave Zurich airport
(Zürich Flughafen) every hour on the minute 13 with connecting
services
at Zurich main station (Zürich HB) and Landquart to Davos
Dorf.
Please use the interactive tool on the right to find your most
convenient connection. Train tickets can be bought either
online or at the railway station's ticket
booth or vending machines. Seating is open on all trains.
Prior
reservation is possible but not normally necessary. If you have additional travel
plans within Switzerland you also might want to check out the
special
offers for visitors from abroad.
If
you prefer to travel by car you can find driving directions here. |
Timetable
|
Hotel accommodation
Arrangements have been
made with the "Hotel Meierhof" in
Davos Dorf to
accommodate
the participants of the IPC-XII. The hotel is within walking distance
from the
observatory.
We depend on your cooperation because the special offer of the hotel is
only valid if all
participants
staying at "Hotel Meierhof" are taking a half-board arrangement. Please
note
that this is a very favourable deal compared to normal prices in Davos
and
most of the other hotels will be closed from the beginning of October. A hotel reservation form will be enclosed with the first letter that will be sent to all participants in June 2005.
|
|
PROGRAM FOR THE FIRST FEW
DAYS
A welcome reception will be held on Sunday evening, 26
September at the Hotel Meierhof.
Monday morning will be dedicated for instrument set-up
and test runs.
|
|
INSTRUMENT REQUIREMENTS
The comparisons are
intended for working
standard
pyrheliometers such as absolute radiometers and compensation
pyrheliometers
of the Ångström type.
Each participating instrument must be accompanied by all necessary
equipment (including a solar tracker)
and trained personnel to allow self-contained operations. No assistance
can
be provided by PMOD/WRC in making the observations.
PMOD/WRC will provide bench space for each
participating
institution/center with a power outlet (230V AC or 110V AC, 50 Hz). A
limited number of 110V, 60 Hz outlets can be provided if
needed, as well as 2 or 6 V DC for Ångström operators. If necessary, laptop computers will be provided for
data ingestion into the central data acquisition
system. Participants may also use their own WLAN equipped device to
connect to a web interface for submitting their
data. Participants must provide their own sun tracking
equipment.
Storing space for instrumentation will also be available.
Procedures and Data Acquisition
Measurements will be
taken in series of
21
minutes duration with a 90- seconds base cadence. A 30-seconds
sub-cadence is currently evaluated for HF and similar type
instruments. Visual as well as aural guidance will
ensure proper synchronization of the
readings.
Participants are required to maintain a log-book (either
electronic or on paper) of all their readings. Data
submission to the IPC-XII data acquisition computer has to occur either via the dedicated web
interface in real-time or by file upload to the
dedicted FTP directory. In the latter case the data
format conventions have to be strictly
followed. Laptop computers will be provided for
participants who do not have a WLAN capable device.
If possible the output of individual values keyed-in by the
participants
will be handed out for checking after each series. At the end of the
day, all results will be posted.
If you have your own digital data acquisition system you may either upload
your data to the central data acquisition system by FTP or use a USB
memory stick. In any case please follow the data format convetions.
A wireless LAN (WLAN) connection will be available to connect to the
data acquisition computer. Details on the naming convention, content
and format of the data files will
be
posted on our web-page and sent with the second announcement.
|
|
TRANSPORTATION OF
INSTRUMENTS
Negotiations are currently under way with
the Swiss customs authorities about a simplified import and
export process for IPC-XII equipment and
instruments.
The costs for transportation and
insurance (if necessary) is to the debit of the owner of
the instrument.
|
COURSE ON METROLOGICAL
RADIOMETRY
TBA
|
SYMPOSIUM AND COURSE
A symposium will be held when the sky is
too cloudy to take measurements. A detailed program for
a course on radiation measurements is currently being
compiled by CIMO experts.
Participants are encouraged to prepare a
presentation in order to share
exprience with radiation measurement and/or
instrument calibration.
|
3rd FILTER
RADIOMETER COMPARISON (FRC-III)
The 3rd
Filter Radiometer Comparison (FRC-III) will be held again during the
IPC-XII. |
|
|