Test Dataset 1 - Residual Stacking

Mean residual maps - Comparison between different periods

Residuals have been stacked over three different periods in 2000. After the first period, there have been some changes in antenna with respect to the second and third, or main, period. This allows us to investigate the effect of antenna changes on the one hand, and sensitivity and repeatability of the residual stacking on the other hand. The three main periods are

  1. Day 110-117 2000 (8 days)
    The Dutch stations Delft, Eijsden and Terschelling used different antenna and receivers compared to the other two periods.
  2. Day 200-207 2000 (8 days)
    Actually, the antenna and receiver in Delft has been changed during the middle (day 205) of the 2nd period. Therefore, results for Delft are analysed for 5 days directly before the change (day 199-204) and 5 days directly after the change (day 206-211).
  3. Day 297-311 2000 (15 days). This is the main period.

The mean residual, in [mm], is plotted in a polar plot of elevation and azimuth, using approximately 1 x 1 degree bins, for the three different periods

Period 1
day 110-117 2000 (8 days)
Period 2
day 200-207 2000 (8 days)
Period 3 (main period)
day 297-311 2000 (15 days)

Delft (DELF)
AOA SNR-12 RM
AOAD/M_T DUTD

Delft (DELF)
AOA SNR-12 RM
AOAD/M_T DUTD

In Delft the receiver and antenna where changed during the middle of the 2nd period.

In the middle column (to the left) is plotted day 199-204.

In the middle column on the next row is plotted day 206-211.


Delft (DELF)
TRIMBLE 4700
TRM29659.00 UNAV

Delft (DELF)
TRIMBLE 4700
TRM29659.00 UNAV

Eijsden (EIJS)
AOA SNR-12 RM
AOAD/M_T DUTD

Eijsden (EIJS)
TRIMBLE 4700
TRM29659.00 UNAV

Eijsden (EIJS)
TRIMBLE 4700
TRM29659.00 UNAV

Terschelling (TERS)
AOA SNR-12 RM
AOAD/M_T DUTD

Terschelling (TERS)
TRIMBLE 4700
TRM29659.00 UNAV

Terschelling (TERS)
TRIMBLE 4700
TRM29659.00 UNAV

Westerbork IGS (WSRT)
AOA SNR-12 ACT
AOAD/M_T DUTD

Westerbork IGS (WSRT)
AOA SNR-12 ACT
AOAD/M_T DUTD

Westerbork IGS (WSRT)
AOA SNR-12 ACT
AOAD/M_T DUTD
Westerbork IGS and AGRS use the same antenna, but are different receivers.
Westerbork AGRS (WSRA)
TRIMBLE 4700
AOAD/M_T DUTD

Westerbork AGRS (WSRA)
TRIMBLE 4700
AOAD/M_T DUTD

Kootwijk IGS (KOSG)
ROGUE SNR-12 RM
AOAD/M_B DUTD

Kootwijk IGS (KOSG)
ROGUE SNR-12 RM
AOAD/M_B DUTD

Kootwijk IGS (KOSG)
ROGUE SNR-12 RM
AOAD/M_B DUTD
Kootwijk IGS and AGRS use the same antenna, but are different receivers.
Kootwijk AGRS (KOSA)
TRIMBLE 4700
AOAD/M_B DUTD

Kootwijk AGRS (KOSA)
TRIMBLE 4700
AOAD/M_B DUTD
Click on the pictures to enlarge.

The following can be concluded from these results

The results agree very well with the other results observed in the third period.