DQR ID | Subject | Data Streams Affected |
---|---|---|
D000119.1 | SGP/GPS/X1 - GPS antenna upgrades | sgp30wpdngpsX1.c1, sgp30wpdngpsX1.00 |
D000720.1 | SGP/GPS/X1 - Change in Algorithm | sgp30wpdngpsX1.c1, sgp30wpdngpsX1.00 |
D060915.6 | SGP/WPDN/X1 - Reprocessed: WPDN GPS errors in station info | sgp30wpdngpsX1.c1 |
D100914.1 | SGP/SUOMIGPS/X1 - Missing data | sgp30suomigpsX1.c1 |
D110919.2 | SGP/SUOMIGPS/X1 - Missing data | sgp30suomigpsX1.c1 |
D980511.1 | Offset in Precipitable Water Vapor | sgp30wpdngpsX1.c1, sgp30wpdngpsX1.00 |
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/1996 | 0000 | 12/26/1999 | 2359 |
Subject: | SGP/GPS/X1 - GPS antenna upgrades |
DataStreams: | sgp30wpdngpsX1.c1, sgp30wpdngpsX1.00 |
Description: | Seth Gutman from NOAA/FSL informed me that the GPS antennas at three of the sites in their network were replaced with newer models. These newer antennas should result in better retrievals of PWV from the GPS. These sites and the dates the antennas where changed are: Lamont 12/23/1999 Purcell 12/26/1999 Plattville 12/16/1999 |
Measurements: | sgp30wpdngpsX1.c1:
sgp30wpdngpsX1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
01/01/1996 | 0000 | 06/27/2000 | 2359 |
Subject: | SGP/GPS/X1 - Change in Algorithm |
DataStreams: | sgp30wpdngpsX1.c1, sgp30wpdngpsX1.00 |
Description: | The algorithm for computing water vapor changed after this end date. The files generated after this date have a global attribute indicating the change. The new algorithm is to be documented in a NOAA Technical Memo. |
Measurements: | sgp30wpdngpsX1.c1:
sgp30wpdngpsX1.00:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
10/18/2005 | 0000 | 08/27/2006 | 2359 |
Subject: | SGP/WPDN/X1 - Reprocessed: WPDN GPS errors in station info |
DataStreams: | sgp30wpdngpsX1.c1 |
Description: | Starting 10/18/05, there were problems with the station information in the sgp30wpdngpsX1.c1 data. There were extra stations listed with shortened station abbreviations and shortened long names. The data itself was okay, there were just extra stations listed. The data for 10/18/05 - 08/27/06 were reprocessed and archived in October, 2006. |
Measurements: | sgp30wpdngpsX1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
07/15/2010 | 0000 | 07/17/2010 | 2359 |
Subject: | SGP/SUOMIGPS/X1 - Missing data |
DataStreams: | sgp30suomigpsX1.c1 |
Description: | ALL ARM sites are missing SUOMIGPS data from 20100715 - 20100717 because of a problem accessing the host computer. |
Measurements: | sgp30suomigpsX1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
08/09/2011 | 0000 | 08/15/2011 | 2359 |
09/20/2011 | 1500 | 09/22/2011 | 2046 |
12/02/2011 | 0000 | 12/25/2011 | 2359 |
Subject: | SGP/SUOMIGPS/X1 - Missing data |
DataStreams: | sgp30suomigpsX1.c1 |
Description: | Data are missing and unrecoverable. |
Measurements: | sgp30suomigpsX1.c1:
|
Start Date | Start Time | End Date | End Time |
---|---|---|---|
12/20/1995 | 0000 | 11/03/1996 | 2359 |
Subject: | Offset in Precipitable Water Vapor |
DataStreams: | sgp30wpdngpsX1.c1, sgp30wpdngpsX1.00 |
Description: | The precipitable water vapor (PWV) is offset 2-3mm low during this time period. However, the offset does vary over this period of time. Dan Wolfe, ETL, states that the offset was caused by a combination of a mapping function and the fact that they were not collecting or processing satellite data below 15 degrees above the horizon. He further states that the trends were still fine during this period. |
Measurements: | sgp30wpdngpsX1.c1:
sgp30wpdngpsX1.00:
|