Difference between revisions of "C2 Blueberry"
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Site is a member of the [[Seward Peninsula Sites]] Research Area. | Site is a member of the [[Seward Peninsula Sites]] Research Area. | ||
| − | ==== June 2008 Trip | + | ==Site declared dead due to clock drift in October 2017== |
| + | * Data continues to be logged as site hasn't been visited since August 2016 but from shortwave radiation data it is clear that the time is drifting sometimes as much as one hour per month beginning 10/4/2017. | ||
| + | * Last radio check in October 2021. | ||
| + | |||
| + | ===Here are some notes it's possible though time consuming to correct all of this but I'll leave it out of the data record for now.=== | ||
| + | * 2005 - 2016: Shortwave all good. | ||
| + | ** Solar Noon looks to be around 15:00 | ||
| + | * 2017 | ||
| + | ** SW data looks ok up till 10/4/2017. | ||
| + | ** It might be worth doing the older grep year routine on incoming SW for 2015+ and then track solar noon shift. Bit messy and time intensive. | ||
| + | ** Skookum switched to pakbus around 7/30/2015 so I think LoggerNet era begins around then, too. | ||
| + | ** Skip ahead in time happens at 10/4/2017 15:00 time step. | ||
| + | ** 10/5/2017 22:00 is next day's sunrise compared to 9:00 the day before. | ||
| + | ** New Solar Noon is ~4:00 | ||
| + | ** Fast forward to Feb 2018. | ||
| + | *** Sunrise 2/26/18 23:00 Sunset 2/27/18 10:00 | ||
| + | *** Sunrise 2/28/18 0:00 Sunset 2/28/18 13:00 <-- Shift happens during the sun up period here. | ||
| + | *** Sunrise 3/1/18 4:00 Sunset 3/1/18 13:00 | ||
| + | *** New Solar Noon appears to be 9:00 | ||
| + | *** May 24 2018: Data gap 5/24/18 1:00 to 5/24/18 22:00 which looks like another clock shift. | ||
| + | *** New Solar Noon: 6:00 | ||
| + | *** Clock is drifting like 2+hrs per year at this point. By the end of 2019 the solar noon is like 8:00. started 2019 year at 6:00. | ||
| + | *** Clock in 2020 solar noon is like 8:00 in January | ||
| + | *** Clock by end of Feb 2020 solar noon is 10:00 | ||
| + | *** Clock at start of April 2020 solar noon is 11/12:00 | ||
| + | *** Clock at start of May 2020 solar noon is 15:00 | ||
| + | *** Another clock reset May 17 2020. New solar noon 23:00 | ||
| + | *** August 1 2020 new solar noon midnight | ||
| + | *** September 2020 still solar noon midnight | ||
| + | *** Clock continues to drift in 2021. | ||
| + | |||
| + | |||
| + | === June 2008 Trip === | ||
* Download Data | * Download Data | ||
* Send new program (snow sensor added) | * Send new program (snow sensor added) | ||
| Line 9: | Line 41: | ||
* Precip bucket Cable | * Precip bucket Cable | ||
| − | + | === Site Data === | |
| − | |||
| − | |||
| − | |||
[http://www.uaf.edu/water/projects/atlas/metdata/Councilsites/Blueberry/current-raw.html Current Data Headers]<br> | [http://www.uaf.edu/water/projects/atlas/metdata/Councilsites/Blueberry/current-raw.html Current Data Headers]<br> | ||
[http://www.uaf.edu/water/projects/near-real-time/rawdatafiles/atlas-blueberry Raw Data Archive]<br> | [http://www.uaf.edu/water/projects/near-real-time/rawdatafiles/atlas-blueberry Raw Data Archive]<br> | ||
| Line 41: | Line 70: | ||
2002 97 900 to 2002 97 1500 | 2002 97 900 to 2002 97 1500 | ||
| − | + | === Problem Sensors === | |
June 2008: Just Precip bucket.<br> | June 2008: Just Precip bucket.<br> | ||
February 2009: 10m HMP45C (went haywire 12/9/08 4:00 AK STD) | February 2009: 10m HMP45C (went haywire 12/9/08 4:00 AK STD) | ||
Latest revision as of 13:18, 17 June 2022
Site is a member of the Seward Peninsula Sites Research Area.
Contents
Site declared dead due to clock drift in October 2017
- Data continues to be logged as site hasn't been visited since August 2016 but from shortwave radiation data it is clear that the time is drifting sometimes as much as one hour per month beginning 10/4/2017.
- Last radio check in October 2021.
Here are some notes it's possible though time consuming to correct all of this but I'll leave it out of the data record for now.
- 2005 - 2016: Shortwave all good.
- Solar Noon looks to be around 15:00
- 2017
- SW data looks ok up till 10/4/2017.
- It might be worth doing the older grep year routine on incoming SW for 2015+ and then track solar noon shift. Bit messy and time intensive.
- Skookum switched to pakbus around 7/30/2015 so I think LoggerNet era begins around then, too.
- Skip ahead in time happens at 10/4/2017 15:00 time step.
- 10/5/2017 22:00 is next day's sunrise compared to 9:00 the day before.
- New Solar Noon is ~4:00
- Fast forward to Feb 2018.
- Sunrise 2/26/18 23:00 Sunset 2/27/18 10:00
- Sunrise 2/28/18 0:00 Sunset 2/28/18 13:00 <-- Shift happens during the sun up period here.
- Sunrise 3/1/18 4:00 Sunset 3/1/18 13:00
- New Solar Noon appears to be 9:00
- May 24 2018: Data gap 5/24/18 1:00 to 5/24/18 22:00 which looks like another clock shift.
- New Solar Noon: 6:00
- Clock is drifting like 2+hrs per year at this point. By the end of 2019 the solar noon is like 8:00. started 2019 year at 6:00.
- Clock in 2020 solar noon is like 8:00 in January
- Clock by end of Feb 2020 solar noon is 10:00
- Clock at start of April 2020 solar noon is 11/12:00
- Clock at start of May 2020 solar noon is 15:00
- Another clock reset May 17 2020. New solar noon 23:00
- August 1 2020 new solar noon midnight
- September 2020 still solar noon midnight
- Clock continues to drift in 2021.
June 2008 Trip
- Download Data
- Send new program (snow sensor added)
- Add snow sensor
- replace batteries
- replace net radiometer
- Precip bucket Cable
Site Data
Current Data Headers
Raw Data Archive
Processed Data Archive
Downloaded station data file names for data pre-dating the radio record on Shand:
C2 Blueberry Data
C2JULY2000.CSV 1999,209,1400 - 2000,208,1600
C2OCT99.DAT 1999,209,1400 - 1999,275,1900
BBDATA1999.XLS 1999,209,1500 - 1999,365,2400
BBDATA2000.XLS 2000,1,300 - 2000,366,2400
C2102701.DAT 2000,229,1200 - 2000,301,1200
COUN2001.DAT 2000,256,1500 - 2000,301,1200
COUN2002.DAT JUST: 2000,301,1300
COUNT2003.DAT 2000,301,1400 - 2001,27,1400
BBDATA2001.XLS 2001,1,300 - 2001,281,900
C20401.DAT 2001,9,500 - 2001,97,1300
BLUE.DAT 2001,97,1400 - 2001,137,600
BLUEBERR.DAT 2001,97,140 - 2001,281,1900
BLUEBR01.DAT 2001,192,1200 - 2001,229,1200
bluedat.txt 2001,277,600 - 2001,297,1900
SHAND RECORD 2001,365,2400 - PRESENT
Blueberry_2005-06-05-a1.dat
2002,70,1700 - 2005,156,2100
Legit Gaps: 2003 82 2100 to 2003 101 1500
2002 168 2100 to 2002 217 1800
2002 97 900 to 2002 97 1500
Problem Sensors
June 2008: Just Precip bucket.
February 2009: 10m HMP45C (went haywire 12/9/08 4:00 AK STD)
Site To Do List
- Replace AT/RH sensors (1m, 3m, 10m)
- All new hardware for radiometers (specifically the machine screws holding the SW/LW radiometers to the radiometer tower). Net radiometer u-bolts. U-bolts should be in the Nome storage but the machine screws will need to be brought from Fairbanks.
- Replace transducer on the Judd.
- Precip Bucket still broken.
Site Log / Visits
On 9/2007 Seward Peninsula Visit weren't able to get across the river (as in another year) so net radiometer overwintered.
From 6/13/08 Visit
Net Radiometer Q99137 installed in 2005 - 2007 Positive Coefficient: 9.15 W/m^2/mV, Negative Coefficient: 11.13 W/m^2/mV Net Radiometer Q97260 Installed 6/13/2008 Positive Coefficient: 9.89 W/m^2/mV, Negative Coefficient: 12.58 W/m^2/mV Judd Snow Depth (digital) 02898
From 8/26/08 Visit
Installed new soil temperature thermistors: 0 cm bgs 5 cm bgs 15 cm bgs 25 cm bgs 35 cm bgs 70 cm bgs Pulled all radiometers and brought them back to Fairbanks so they can be recalibrated. Precip bucket still broken. '2' value in input location and final storage ever since attempted fix in June. Not sure what the deal is at present.
