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Changes for page Field Deployment Guides

Last modified by Jack Dent on 2025/10/30 11:52
From version 32.1
edited by robert
on 2025/07/23 15:31
Change comment: There is no comment for this version
To version 35.1
edited by Jack Dent
on 2025/10/30 11:52
Change comment: There is no comment for this version

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1 -XWiki.robert
1 +XWiki.JackD
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10 10  * Cattle and stock can and will destroy your site and our instrumentation. NEVER **EVER** install a station where cows can get to it because they //will// get to it and they **WILL** destroy it.
11 11  * If the area looks like a place that has flooded, or may flood again, absolutely assume that it will. This very much includes dry riverbeds or ponds. Always prefer locally elevated terranes.
12 12  * The harder the soil, the better the signal. Sand and mud are your enemy.
13 -* Grass can often grow high enough to block your solar panel from sun. If possible, clear an area in front of the panel to minimize this possibility.
13 +* Grass can often grow high enough to block your solar panel from sun. If possible, clear an area in front of the panel to minimize power loss.
14 14  )))
15 15  
16 16  = Installing Sensors =
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46 46  * Use wire to secure the fence to the post and also the solar panel to the fence.
47 47  * Place the solar panel as high on the fence as possible to reduce any interference from grass and weeds. When securing the solar panel to the fence with wire, make the wire as tight as possible to reduce "rattle" in the wind. Test yourself. It's usually a great idea to use a pair of pliers to make the final twist in the wire so that it is **really tight**.
48 48  
49 -= Fire safety & Security Measures =
49 += Fire Protection & Security =
50 50  
51 -* In fire-prone areas (e.g. everywhere in Australia), where possible, clear perimeter around the installation to reduce fire risk. Assume the area will catch on fire~-~- will your site survive?
52 -* Use fireproof blankets to cover the logger. This also keeps the loggers clean and keeps dirt our of the card slots etc. Fire blankets are also permeable, unlike tarps, which avoids trapping rainwater around the logger which can destroy it as well as attract ants, centipedes, snakes, and other insects/animals.
53 -* We also recommend burying the data loggers with some dirt as this keeps them cool, further reduces the chance of fire damage, and keeps people from snooping around.
51 +* In fire-prone areas, clear a perimeter around the installation to reduce fuel sources. Assume the area will catch on fire~-~- will your site survive?
52 +* Consider using fireproof covers for the logger. This will have the added benefit of reducing soil contact, especially dirt getting into SD card slots. A permeable cover will avoid trapping rainwater ~-~- a problem associated with plastic tarps, which damages the logger and attracts insects/animals (ants, centipedes, snakes, etc.). We are still testing materials for suitability in the field (e.g., safe and tolerable degradation in the environment).
53 +* We recommend adding a soil layer for insulation. This seems to keep loggers cooler, reduce fire damage, and discourage interference by people passing by.
54 54  
55 55  = Metadata & Site Logs =
56 56  
57 -* Documenting site installs and service information is not just a good idea, but **REQUIRED** as part of your ANSIR agreement. You are expected to take proper site logs.. trust us, it's for your own good. Failure to do so may result in ban for future loans.
57 +* Documenting site installs and service information is a mandatory requirement of your ANSIR agreement. You are expected to keep proper site logs... trust us, it's for your own good. Failure to do so may result in ban for future loans.
58 58  * Document the installation process, including sensor types, **serial numbers**, orientations, high quality latitude/longitude coordinates, elevation, and system configurations, along with fire safety measures implemented.
59 -* Draw a map or at least take a google maps screenshot with some drawn annotations so others can find the site.
59 +* Draw a map, or at least take a google/open maps screenshot with some drawn annotations so others can find the site.
60 60  * Record essential metadata for seismic data interpretation.
61 61  
62 62  = Sensor protection =
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133 133  (% style="width:807px" %)
134 134  |(% style="width:263px" %)A) [[image:original_c8aaadae-30a0-45b3-9069-bfe03459e06f_IMG_20250525_123128828.jpg||height="208" width="222"]]|(% style="width:268px" %)B) [[image:original_3168dca2-ab8b-4062-9847-b0ee1d0fcf80_IMG_20250525_123247255.jpg||height="208" width="223"]]|(% style="width:273px" %)C) [[image:IMG_20250525_123327086.jpg||height="205" width="211"]]
135 135  
136 -
136 +
137 +
138 +Comparison of installation methods on Black Mountain (Canberra):
139 +
140 +The seismic equipment was left in the field for approximately 6 months (April – October) through winter. There was much rain throughout the experiment period, with the last rain occurring one day prior to excavation, and heavy rain occurring the week before. Note that more temperature fluctuations may occur throughout summer, and thus more chances for condensation and corrosion to occur, therefore this experiment should be conducted again over a summer period.
141 +
142 +Upon excavating all setups, there appeared to be little difference in the moisture levels.
143 +
144 +The first method (PVC) had collected a small amount of moisture. The seismometer was a little bit wet, while the interior of the PVC housing had condensation lining the walls. The paver beneath was also quite damp, however, no water had pooled at the bottom of the seismometer.
145 +
146 +The other two setups (both using the sand method) were also quite moist. Upon excavation, the coarse river sand was damp (though not soaked). There had been no infiltration of mud from the surrounding area into the coarse river sand, suggesting that all the moisture had come straight down the column of sand, and not flowed in from the sides. Underneath the feet of the seismometer (SN3660) from the full setup, much condensation had been collected. There were no feet on the seismometer of the second sand setup and thus no space for condensation underneath. The tops of both seismometers were covered in damp sand, though there appeared slightly less moisture than the top of the sensor in the PVC housing. An accurate assessment of moisture content was difficult as one seismometer was covered in sand, and the other showed a clear view of how much surface condensation there was. 
147 +
148 +Additionally, when unwrapping the cloth adhesive from the PVC burial, there appeared to be a glob of hydrated glue from the adhesive. This was not present on the connections of the two sand burial seismometers, despite using the same cloth adhesive. This may suggest that moisture lingers for a longer period in the PVC housing (as suspected), having time to be absorbed into the adhesive more. 
149 +
150 +Upon inspection of the connectors of each seismometer, there was little condensation within each, and no sand had appeared to infiltrate the connections in the sand buried equipment.
151 +
152 +|(((
153 +[[PVC burial>>image:20251027_111019.jpg||height="216" width="200"]]
154 +)))|(((
155 +[[PVC burial>>image:PVC glue.jpg||height="219" width="268"]]
156 +)))|(((
157 +[[Sand burial>>image:20251027_112642.jpg||height="218" width="192"]]
158 +)))|(((
159 +[[Sand burial>>image:20251027_112721.jpg||height="221" width="218"]]
137 137  )))
138 138  
162 +Key findings:
139 139  
164 +The PVC burial method resulted in a small amount of moisture collecting on the top of the seismometer and within the PVC casing, and the development of a hydrated glob around the connector. 
140 140  
166 +The sand burial method resulted in slightly less moisture collecting around the top of the seismometer (subject to error of perception), though no glob of hydrated adhesive, suggesting quicker drainage did occur. The sand burial did however allow for more moisture to collect on the underside of the seismometer compared to the PVC burial, though as the connector is atop the seismometer, this result may be irrelevant.
141 141  
168 +It should be noted that there was no mud present in the column of sand, suggesting little to no lateral seepage of moisture.
142 142  
170 +Lastly, all connectors contained a small amount of condensation, were free of sand or dirt (thanks to the cloth tape), and no corrosion was noticeable.
171 +)))
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149 149  (% class="col-xs-12 col-sm-4" %)
150 150  (((
151 151  {{box title="**Contents**"}}
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157 157  [[image:20230925_122808.jpg||alt="working on a site" data-xwiki-image-style-alignment="center" height="467" width="350"]]
158 158  //Figure 2: Flipping up the back of the fence onto the support picket to work comfortably//
159 159  
160 -[[**Fireproof blanket**
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162 -size: 1x1 m2>>image:20240116_125547.jpg||data-xwiki-image-style-alignment="center"]]
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165 165  )))
166 166  )))
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