Welcome to GRUAN Newsletter 2017-06. Here you will find actual information on GRUAN related activities.

Some email programms cannot handle styled emails, if so then you can go to following webpage corresponding to this newsletter.

GRUAN’s 9th Implementation and Coordination Meeting (ICM-9) will be held from 12-16 June 2017 at FMI headquarters in Helsinki, Finland. Main topics of the meeting are the RS92 to RS41 change management, connection to other networks and science. Furthermore there will be a special session on research activities in the Arctic.

Please find more information about GRUAN ICM-9 on the new website.

We proudly announce the new GRUAN website. This new website has been completely revised and redesigned and offers a number of new features and services:

Independent site

The website is an independent site hosted on a separate server, and is no longer part of the DWD website.

Modern design

The new website has a modern responsive design and can be displayed at all kind of web-enabled devices, such as PC, tablet, smartphone.

Dynamical elements

The new website includes elements with dynamical contents, e.g. an overview of the status of the GRUAN data archive.

Communication platform

The new website integrates all web activities that were previously scattered over various sites, e.g. website, blog, wiki, etc. In addition, new features are available, such as comments, user forum, or contact form.

Secure access

The new website supports the secure protocol HTTPS.

User management

The new website includes user management. Beside the registration at the site as a normal user, users can have different levels of access privileges.

Protected areas

The new website offers restricted areas where information is available to selected users only, e.g. for GRUAN working group.

Please go to https://www.gruan.org and visit the new website. Any feedback or suggestions for improvements are welcome (gruan.lc@dwd.de).
 

Recently, various GRUAN sites have changed their system used for daily operational radiosoundings.

For most sites this concerns the introduction of Vaisala's RS41, which replaces the RS92 as radiosonde for operational use. In addition, the Swiss GRUAN site of Payerne is now using the Meteolabor SRS-C50 as operational radiosonde as successor of the SRS-C34 model.

The involved sites and sondes, and the date of the transition are listed below:

Boulder (BOU-RS-01)

Change from Vaisala RS92-SGP to Vaisala RS41-SGP on 2017-01-04

Cabauw (CAB-RS-01, De Bilt launch site)

Change from Vaisala RS92-SGP to Vaisala RS41 on 2017-01-17 00 UTC

Lauder (LAU-RS-01)

Change from Vaisala RS92-SGP to Vaisala RS41-SGP on 2017-02-15 21 UTC

Lauder (LAU-RS-02, Invercargill launch site)

Operational Vaisala RS41-SG launches in GRUAN data flow since 2016-09-10 (change from RS92 to RS41 a few months before)

Lindenberg (LIN-RS-01)

Change from Vaisala RS92-SGP to Vaisala RS41-SGP on 2017-03-21 18 UTC

Ny-Ålesund (NYA-RS-01)

Change from Vaisala RS92-SGP to Vaisala RS41-SGP on 2017-04-01 12 UTC

Payerne (PAY-RS-01)

Change from MeteoLabor SRS-C34 to MeteoLabor SRS-C50 on 2017-02-01

Potenza (POT-RS-01)

Change from Vaisala RS92-SGP to Vaisala RS41 in the beginning of 2017

 

To ensure data homogeneity and proper management of this change, intercomparison studies are ongoing to identify and characterize the possible differences between the old and the new radiosonde types. This will guarantee that the data series for these sites comply with the GRUAN standards for high quality reference observations.
 

GRUAN Lead Centre
Deutscher Wetterdienst
Meteorologisches Observatorium Lindenberg
Am Observatorium 12
15848 Tauche / Lindenberg
Germany