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Last modified by robert on 2025/08/15 16:30
From version 16.1
edited by Jack Dent
on 2024/01/15 08:56
Change comment: There is no comment for this version
To version 24.1
edited by Sima Mousavi
on 2024/01/24 16:27
Change comment: There is no comment for this version

Summary

Details

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2 2  (((
3 3  (% class="col-xs-12 col-sm-8" %)
4 4  (((
5 += **Node Setup** =
6 +
7 +Short term (~~30 day) battery powered nodes. The default gain should be 24 db for the 16HR-3C and 6 db for the BD3C-5
8 +
9 +
10 +~*~**this needs to be reformatted
11 +
12 +== **Pre-Fieldwork Preparation** ==
13 +
14 +(% class="box infomessage" %)
15 +(((
16 +(% class="box warningmessage" %)
17 +(((
18 +**INVEST IN FAST EXTERNAL HARD DRIVES – DO NOT LET THIS BE THE LIMITATION OF DATA HARVESTING**
19 +
20 +**Plan on 1 Tb to store ALL data for 50 nodes @ 250 Hz and a single ~~30 day occupation**
21 +)))
22 +)))
23 +
24 += **Installation** =
25 +
26 +=== **1- Logbook documentation** ===
27 +
28 +(((
29 +**Essential Details**: Record the following in a logbook:
30 +
31 +* Station name
32 +* Latitude and longitude
33 +* Names of team members present
34 +* Date and local time of installation
35 +* Serial number (SN) of the sensor
36 +* Detailed notes on the site conditions and setup
37 +
38 +=== **2- Node Placement** ===
39 +)))
40 +
41 +**Protection**: Place nodes inside thick, landfill biodegradable plastic bags for environmental protection.
42 +
43 +**Site Analysis**:
44 +
45 +* Conduct compass measurements away from the node and metallic structures, adjusting for inclination angle.
46 +* Take multiple photographs from various angles to document the site setup thoroughly.
47 +* Include a detailed site description in your notes, specifying distances and orientations from nearby landmarks (e.g. Richards garden, Te Mini steam field eastern side)
48 +
49 +=== **3- GPS Considerations** ===
50 +
51 +(% class="wikigeneratedid" %)
52 +The GPS antenna is at the top and center of the unit, and will (usually) only receive signal with a clear sky view directly above. The signal is able to penetrate plastic and terracotta planters and a thin layer of soil, but may struggle if the soil layer is too thick. The BD3C will not start recording without first attaining a GPS lock.
53 +
54 +=== **4- Visibility and Location Marking** ===
55 +
56 +**Flag Placement**: Position a flag, preferably in a bright color (avoid green or yellow), near the instrument to aid in its future location.
57 +
58 +**GPS Marking**:
59 +
60 +* Use a GPS device to mark the instrument's exact location.
61 +* Record this location in both your paper notes and the GPS device.
62 +
63 +=== (% style="color:inherit; font-family:inherit; font-size:max(18px, min(20px, 14.4444px + 0.462963vw))" %)**5- Charge Time, Pre-Deployment & Post-Deployment**(%%) ===
64 +
65 +* **Charging Duration**: Both types of nodes take approximately 6-8 hours to fully charge from a flat state.
66 +* **Pre-Deployment Charging**:
67 +** Although the nodes hold their charge well, it's beneficial to give them a "top up" charge right before deployment.
68 +
69 +* **Operational Duration**:
70 +** When recording at 250 Hz, with GPS on and Bluetooth disabled, the instruments are expected to last about 30 days per charge cycle.
71 +
72 +* **Post-Retrieval Charging**:
73 +** Do not store the instruments with completely drained batteries.
74 +** After retrieval, charge the instruments to about 50-60% (indicated as "orange" level) for optimal battery health.
75 +
76 +* **Storage and Shipping Charge Level**:
77 +** Maintain a battery charge level of around 50-60% for both storage and shipping purposes.
78 +** This charge level is recommended to prevent battery damage and is safe for transportation.
79 +
80 +=== ===
81 +
82 +=== **6- Data Sharing and Metadata Creation** ===
83 +
84 +**GPS Data**:
85 +
86 +* Download the GPS file to a laptop.
87 +* Share this file on a drive accessible to all team members for uniform understanding of node locations.
88 +
89 +**Photo Sharing**:
90 +
91 +* Upload site photos to a shared platform (OneDrive, Dropbox, etc.).
92 +* Integrating photos into Google Maps or Google Earth can be particularly beneficial for easy location referencing.
93 +
94 +**Metadata File**:
95 +
96 +* Create a metadata XML file for each node, which is essential for data organisation and future reference.
97 +
98 +=== **7- Additional Best Practices** ===
99 +
100 +* **Environmental Responsibility**: Ensure that the node placement and the materials used are environmentally responsible and adhere to local regulations.
101 +* **Training and Familiarisation**: Make sure all team members are adequately trained in using the GPS devices, compass, and other equipment to ensure consistent and accurate data collection.
102 +
103 +* (((
104 +==== **Keeping the Instruments Clean** ====
105 +)))
106 +* (((
107 +Use a (**landfill**, not //compost//) degradable bag when installing to keep the instrument clean. This will save you many hours of time cleaning them in preparation for their return. [[Here is a video>>url:http://auspass.edu.au/field/bd3c_removal.mp4]] demonstrating its effectiveness.
108 +)))
109 +
110 += =
111 +
112 +=== **Seismic Station Demobilization and Documentation** ===
113 +
114 +1. (((
115 +**Preparation for Demobilization**:
116 +
117 +* Before starting the demobilization process, ensure you have a compass, tape, marker, pen, clipboard, logbook, and compass ready in your tote bag.
118 +)))
119 +1. (((
120 +**Locating the instrument**:
121 +
122 +* Use the downloaded GPS file to accurately locate the node for demobilization.
123 +* Import this KMZ file onto your phone for easy reference and location tracking.
124 +* Utilize Google Maps or Google Earth to create a KMZ file of the station’s location.
125 +)))
126 +1. (((
127 +**Labeling Instruments for Demobilization**:
128 +
129 +* Write the station name and the instrument’s serial number on a label.
130 +* Add markers 'D' (for download), 'C' (for charge), and ‘R’ (for removal) next to checkboxes on the label.
131 +* Affix this label to the top of the instrument to avoid confusion during the charging and downloading data.
132 +)))
133 +1. (((
134 +**Photographing the Setup Node**:
135 +
136 +* Take a photo of the entire setup node with the __//label//__ and __//compass visible//__.
137 +* This photo serves as a final record of the instrument’s condition and orientation at the time of removal.
138 +)))
139 +1. (((
140 +**Logging Demobilization Details**:
141 +
142 +* Use the field logbook to note the time of demobilization, serial numbers, and station name.
143 +* Record any observations or issues related to the instrument’s orientation, level, or any other relevant factors.
144 +)))
145 +1. (((
146 +**Final Checks and Equipment Removal**:
147 +
148 +* Before physically removing the instrument, double-check that all necessary data has been downloaded and all photos and notes have been taken.
149 +* Carefully dismantle and pack the equipment, ensuring that all components are accounted for and securely stored for transport.
150 +)))
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5 5  = SmartSolo IGU 16HR 3C (5 Hz) Short Period Node =
6 6  
7 7  blahblah