Discharge measurements with ADCP - Revision history

imported>Bob at 21:44, 29 February 2016

2016-02-29T21:44:49Z

137.229.92.213 at 00:37, 1 May 2013

2013-05-01T00:37:04Z

137.229.92.243 at 19:46, 28 March 2013

2013-03-28T19:46:49Z

137.229.66.77 at 18:40, 29 June 2011

2011-06-29T18:40:40Z

137.229.66.77: /* Other notes */

2011-06-29T18:39:47Z

Other notes

137.229.67.195 at 21:22, 2 April 2010

2010-04-02T21:22:30Z

137.229.67.195 at 21:10, 2 April 2010

2010-04-02T21:10:21Z

imported>Eyoucha at 18:57, 2 April 2010

2010-04-02T18:57:59Z

imported>Eyoucha at 18:56, 2 April 2010

2010-04-02T18:56:44Z

imported>Eyoucha at 18:52, 2 April 2010

2010-04-02T18:52:39Z

← Older revision		Revision as of 21:44, 29 February 2016
Line 1:		Line 1:
		+	SW1321 Streamflow Measurements Using ADCPs Training Course
		+	* https://hydroacoustics.usgs.gov/training/SW1321TEL.shtml
		+	* (December 2014 USGS Online Training Course)
		+
		+
	* [[ADCP References]] Visit this page for documentation of procedures for ADCP you will be using.		* [[ADCP References]] Visit this page for documentation of procedures for ADCP you will be using.
	* [[2013 ADCP Extra Guidance]]		* [[2013 ADCP Extra Guidance]]

@@ Line 1: / Line 1: @@
 * [[ADCP References]] Visit this page for documentation of procedures for ADCP you will be using.
+* [[2013 ADCP Extra Guidance]]
 Additional Equipment needed:
 *Laser Rangefinder to measure shore distances,

@@ Line 130: / Line 130: @@
 interference is possible (signals from the satellites
 bounce off structures and objects such as trees along
-the bank or nearby bridges or buildings) or where
+the bank) or where
 reception of signals from GPS satellites is blocked."

@@ Line 10: / Line 10: @@
 *Transducer depth below water surface
 *Maximum water depth and velocity
-*Magnetic declination
+*Magnetic declination (see NOAA)
 Notes you should take in the field:
@@ Line 23: / Line 23: @@
 *ADCP test
-*[[Compass calibration]] (Rio Grande, River Cat, Streampro)
+*[[Compass calibration]] (Rio Grande, River Cat, River Surveyor Streampro)
 *[[Moving bed test]] REQUIRED (especially if no GPS)

@@ Line 29: / Line 29: @@
 *RTK-GPS is recommended, but check the GGA string to make sure it is working (5 for Novatel RTK, 9 indicates WAAS is enabled)
-*ADCP baud rate should be 115K, GPS baud rate should be 19.2K or higher.  Rio Grande baud rate needs to be programmed using BBTalk or equivalent.
+*ADCP baud rate should be 115K, GPS baud rate is set at 39K. Initially (upon receiving the purchase of a new instrument), the Rio Grande baud rate needs to be programmed using BBTalk or equivalent.
-*Measure (not estimate) your edge distances w/ laser rangefinder.  Describe the edge (triangle or square?) in order to get the best estimate of flow in the edge.
+*Measure (not estimate) your edge distances w/ laser rangefinder or tape measure.  Describe the edge (triangle or square?) in order to get the best estimate of flow in the edge.
-*Measure your ADCP transducer depth below water surface with ruler or tape measure
+*Measure your ADCP transducer depth below water surface with ruler or tape measure and keep an eye on it during the measurement to see if it changes.
-*Beam 3 forward or offset 45 deg.  If offset put a note in your field book and need to enter this into Winriver II.
+*Beam 3 forward or offset 45 deg.  If offset put a note in your field book and need to enter this into Winriver II.  Note:  The new streampros (w/ compass) need to be in the proper orientation at all times.  The arrow indicates the forward direction and it is 45 degrees offset.  The power and communication unit needs to be oriented forward as well (as it is in a trimaran set up), if not you can apply a 180 degree correction.  Make a note of all orientations.
 *Gage height.  Record the gage height before and after the measurement to make sure there is no big changes in stage/flow during measurement.  If there is no staff gage at the location of discharge measurement, install a temporary rebar in the river and do a tape down measurement before/after
 *Water temperature.  Field check the water temperature with a portable probe at the location of your measurement to make sure the adcp temperature is correct.

@@ Line 27: / Line 27: @@
 == Other notes ==
 *RTK-GPS is recommended, but check the GGA string to make sure it is working (5 for Novatel RTK, 9 indicates WAAS is enabled)
 *ADCP baud rate should be 115K, GPS baud rate should be 19.2K or higher.  Rio Grande baud rate needs to be programmed using BBTalk or equivalent.
@@ Line 36: / Line 37: @@
 *Use WinRiver II to QA/QC discharge measurement in the field!
+*For RDI ADCPs The water modes / cell size configuration are a trade off between range,  random noise and resolution.   Small cells will be noisier but have good resolution.  Large cells will give you less noisy data, but lower resolution.
 Follow the following excerpt from USGS QAQC procedures by Oberg et. al.:

← Older revision		Revision as of 21:10, 2 April 2010
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	*[[Compass calibration]] (Rio Grande, River Cat, Streampro)		*[[Compass calibration]] (Rio Grande, River Cat, Streampro)
	*[[Moving bed test]] REQUIRED (especially if no GPS)		*[[Moving bed test]] REQUIRED (especially if no GPS)
		+
		+	== Other notes ==
		+	*RTK-GPS is recommended, but check the GGA string to make sure it is working (5 for Novatel RTK, 9 indicates WAAS is enabled)
		+	*ADCP baud rate should be 115K, GPS baud rate should be 19.2K or higher. Rio Grande baud rate needs to be programmed using BBTalk or equivalent.
		+	*Measure (not estimate) your edge distances w/ laser rangefinder. Describe the edge (triangle or square?) in order to get the best estimate of flow in the edge.
		+	*Measure your ADCP transducer depth below water surface with ruler or tape measure
		+	*Beam 3 forward or offset 45 deg. If offset put a note in your field book and need to enter this into Winriver II.
		+	*Gage height. Record the gage height before and after the measurement to make sure there is no big changes in stage/flow during measurement. If there is no staff gage at the location of discharge measurement, install a temporary rebar in the river and do a tape down measurement before/after
		+	*Water temperature. Field check the water temperature with a portable probe at the location of your measurement to make sure the adcp temperature is correct.
		+	*Use WinRiver II to QA/QC discharge measurement in the field!
		+