Difference between revisions of "NGEE Teller SW Notes"

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** In 2018-2019 winter stage got low enough that curve is off again.  Like lower stage = higher flow.
 
** In 2018-2019 winter stage got low enough that curve is off again.  Like lower stage = higher flow.
 
* For 2021+ I think going to retire PT1 from record the PT2 (June install) and PT3 (September install)
 
* For 2021+ I think going to retire PT1 from record the PT2 (June install) and PT3 (September install)
 +
====May 2022====
 +
* Need to come out in May I think before creek stage has dropped too far from snow melt and make a couple discharge measurements.  I think if we do this it will be easier to tie 2021 to 2016 - 2021 record since stage-disharge curve is pretty tight at the top.
  
 
===QA===
 
===QA===

Revision as of 17:45, 22 October 2021

NGEE

Direct Link to Data

General

  • Winter 2021 Observation: Look over bash script... need to make sure that QA corrections take place after stage is corrected to match rebar values...
    • a second QA I think.
      • Basically, the grouper needs to run once to create the hourly individual time series discharge data.
      • Then the manual QA is applied.
      • then the data grouper runs a second time
      • This is a bit odd and another way to do this would be to split the teller_sw data grouper into two pieces but it works ok for now.
  • I'm looking at the 2017 April 27 & 28 discharge measurement times and the corrected data looks great but the raw data looks like it has the shift applied too early. Perhaps that is unavoidable? I'll think on it. but currently not fixed 11/7/2018
  • Basin Size is 1.24 km^2 or 1,243,875 m^2* I think we need to double-check this value using the high resolution DSM from LANL. 2/14/2019
  • Cross section at salt slug dump is 2.7 meters roughly
  • about 90 meters from there to the measuring point (following left bank surveyed points).

Instrumentation 2021 Refresh

  • Data logger
    • Campbell Scientific CR800
  • Pressure Transducer 1 (old replaced in June 2021)
  • Pressure Transducer 2 (added in September 2021)

Original Instrumentation

  • Data logger
    • Campbell Scientific CR10X
  • Pressure Transducer

Latest

  • Officially processed through 6/2019
    • there are some early winter 2017 peaks I think should be considered for deletion.
    • In 2018-2019 winter stage got low enough that curve is off again. Like lower stage = higher flow.
  • For 2021+ I think going to retire PT1 from record the PT2 (June install) and PT3 (September install)

May 2022

  • Need to come out in May I think before creek stage has dropped too far from snow melt and make a couple discharge measurements. I think if we do this it will be easier to tie 2021 to 2016 - 2021 record since stage-disharge curve is pretty tight at the top.

QA

Stage 2016

8/13/2016 3:00	PTs offset
9/14/2016 22:00	PT1 Position Reset & PT2 Removed
  • 2016 Offsets for corrected PT 1 Stage:
"2016-08-13 03:00:00",-0.61
"2016-08-15 02:30:00",-0.49
"2016-09-14 22:00:00",-1.83
  • Hourly Processing deletions:
    • 2016-09-15 17:00 to 2016-12-31 23:00 :
      • In fall there is a diurnal component to stage that is driven by air temperature I think due to exposed pressure transducer cable after the leaves fall.
      • Probably good data returns for a bit later in fall but it is hard to say just when the channel shape changes due to ice. So, I lean to remove all data until 2017 April visit

Stage 2017

4/1/2017 3:00	Station Turned back on, PT2 in place further downstream
10/1/2017 20:00	PT2 Removed
4/28/2017 1:50 shift in pt2? then
  • Offset for 4/1/2017+
"2017-04-01 01:30:00",-3.10
  • Hourly processing deletions:
    • 2017-01-01 0:00 to 2017-04-01 2:00
      • Winter / station battery dead
    • 2017-10-24 21:00 to 2018-05-14 20:00
      • Winter / hard to say when channel shape changes.
      • I set this date due to the creek being in recession for winter and the water temperature signal which is a full on guess. For reference, I NaN out the summer precip on 10/15. So I'm not 100% confident this is the right time to the hour but probably it's okay?
      • Ending date in May 2018 was selected as first day with a diurnal signal in water temperature (i.e. snow melt has melted the snow in the channel) and also, the first Q peak in May to me looks snow influenced. But 5/14 is down from that peak.

Stage 2018

6/15/2018 12:40 AKDT 12cm above rebar 1; 20.5 cm in front of rebar 1
9/24/2018 18:50 AKDT 3cm above rebar 1; 13cm in front of rebar 1
9/26/2018 10:48 AKDT 5cm above rebar 1; 14.5cm in front of rebar 1

Temperature 2016

5/2/2016 3:00
8/13/2016 3:00

Temperature 2017

10/1/2017 20:50

Temperature 2018

4/6/2018 2:50


Site Downloads / visits:

  • Bob 4/21/2016 (CR1000)
  • Lily 7/13/2016 (CR1000)
  • Bob/Lily 8/12/2016 (CR1000)
  • Bob 9/14/2016
  • Bob 4/1/2017
  • Bob 5/2017
  • Bob/Lily 10/1/2017
  • Bob 3/30/2018
  • Bob 6/13 & 15/2018
  • Bob 9/26/2018
  • Bob 4/7/2019
  • Bob/Bob 6/11 & 6/14/2019
  • Bob Bolton 7/3/2019 (Q measurement only)
  • Bob Busey 9/19/2019
  • Ken Hughes 11/4/2020 (Data logger Retrieval only)

From Computer Notes

Need to put into a spreadsheet pressure transducer value / date / manual stage reading.... need to review notes.

Related: discharge measurements
Related: Get manual stage & discharge measurements into UTC time.

Then once that is complete can look at using 
/var/site/uaf_sp/bin/teller_sw.sh
and the step utility function to correct everything to proper heights.
...should think about gedit plug ins too to make it more like xed.

Original Google Doc:

Summary Google Doc: 


2/8: So.... including precip helps but there is still a period in september / october 2016 that confuses me with the diurnal signal looking more like air temperature driven.  Emily and I sort of think that the heating of the cable might be playing a role here but I haven't looked too hard yet.

Data Archive File Notes

10 minute data files

  • stage_1_fix.csv
  • watertemp_1.csv
  • discharge_steady.csv

60 minute data files

  • teller_sw_stage.csv
  • teller_sw_temperature.csv
  • teller_sw_discharge.csv
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