Staatsbosbeheer, Beheerseenheid De Weerribben, Kantoor/werkplaats Kalenberg Noord 2, 8377 HC Kalenberg, Overijssel.
On-site contact: Jacco Schilder, Staatsbosbeheer
GNSS contact: Hans van der Marel, TUD/GRS
GNSS Instrument(s)
| Name | Marker | Receiver | Antenna | Operator | Network | Start date | End date |
|---|
| wrib | WRIB00NLD | UBLOX ZED-F9P | ANN-MB-00+GP15 | TUD/GRS | SUMO | 2023-07-28 | |
Markers
| ID | Name | dX | dY | dZ | Instruments | Installed | Removed |
|---|
| WRIB00NLD | TOP SOIL | 0.0000 | 0.0000 | 0.0000 | wrib | 2023-07-28T14:00Z | |
Pictures
Notes
- 2023-07-28T11:00Z 2272/5 209 - 2024-10-14T13:00Z 2336/1 288
- The GNSS logger was installed in July 2023 by Shore Monitoring and Research to monitor ground motion
in the framework of the Nationaal Onderzoeksprogramma Broeikasgassen Veenweiden (NOBV).
The GNSS antenna is installed on a grid to monitor the motion of the top soil.
- 2024-10-14T14:00Z 2336/1 288 -
- In October 2024 TU Delft took over responsability for the GNSS logger and processing
from Shore Monitoring and Research. The receiver and antenna were replaced, with the
antenna staying in the same position as before, and several other upgrades were made.
- 2023-07-28T11:00Z 2272/5 209 -
- The nearest base station for the processing is a GNSS station at Steenwijk, operated by 06-GPS, at a
distance of 13km.
Active instruments
Marker ID: WRIB00NLD
Operator: TU DELFT
Receiver
| Installed | week/d doy | Removed | week/d doy | Receiver type | S/N | Firmware |
|---|
| 2023-07-28T14:00Z | 2272/5 209 | 2024-04-08T12:08Z | 2309/1 099 | UBLOX ZED-F9P | 178702 | 1.13 |
| 2024-10-14T14:15Z | 2336/1 288 | | | UBLOX ZED-F9P | 28201 | 1.32 |
Antenna
| Installed | week/d doy | Removed | week/d doy | Antenna type | Dome | S/N | Height | Antenna calibration |
|---|
| 2023-07-28T14:00Z | 2272/5 209 | 2024-10-14T13:00Z | 2336/1 288 | ANN-MB-00+GP15 | NONE | 2212 | 0.0000 | |
| 2024-10-14T14:15Z | 2336/1 288 | | | ANN-MB-00+GP15 | NONE | 2107 | 0.0000 | |
External Frequency
| Installed | week/d doy | Removed | week/d doy | Ext. Frequency type |
|---|
| 2023-07-28T14:00Z | 2272/5 209 | | | INTERNAL |
Notes
- 2023-10-25T00:00Z 2285/3 298 - 2024-02-27T23:50Z 2303/2 058
- In the winter of 2003/2024 there are numerous gaps in the data because of insufficient power
from the Solar panels and batteries to power the receiver and Raspberry Pi 4. The Raspberry Pi
and Teltonika Router were replaced by a GL-iNet OpenWrt router in October 2024, which should
reduce the power consumption significantly and increase the availability.
- 2023-12-01T00:00Z 2290/5 335 - 2024-04-08T12:08Z 2309/1 099
- The Raspberry Pi 4 data logger was not synchronized to UTC since the beginning of December 2023.
Therefore, the raw u-blox data was written to files with incorrect timestamp; in February 2024 the
clock was running 46 days behind UTC. The data was restored to the proper file format,
using the 'ubx2file.pl' tool, before being converted to RINEX, in November 2024.
- 2024-02-08T10:00Z 2300/4 039 - 2024-02-08T11:00Z 2300/4 039
- On 8 Feb 2024 an inspection was carried out. The instrumentation cabinet was opened and inspected.
No ingression of water was detected. The state of charge of the batteries was 33% at this time.
- 2024-04-08T12:08Z 2309/1 099 - 2024-10-14T14:15 2336/1 288
- The station stopped logging data on 8 April 2024 at 12:08 UTC because the Raspberry Pi's SD card
was full.
- 2024-10-14T14:15Z 2336/1 288 -
- On 14 October 2024 the Raspberry Pi and Teltonika RUT240 were replaced by a GL-iNet X750
OpenWrt 4G router using the UbxLogger software. The receiver and antenna were also replaced, the
receiver because of water damage and antenne because of a cut antenna cable.
These damages must have occured after 8 April 2024.
For more information contact Hans van der Marel.
