CW3E id: WPO
CDEC id: WPO
NWS id: --
Lat/Long: 37.813267 / -120.287444
Elevation: 639m
Team Lead: [private]
Install Date: June 29, 2021
Permit Expires: --
Watershed: Tuolumne
Telemetry: Cell
Monument: Tripod
Land Owners: Hetch Hetchy Water & Power
Permit Type: Email
Site Type: RadMet
CDEC id: WPO
NWS id: --
Lat/Long: 37.813267 / -120.287444
Elevation: 639m
Team Lead: [private]
Install Date: June 29, 2021
Permit Expires: --
Watershed: Tuolumne
Telemetry: Cell
Monument: Tripod
Land Owners: Hetch Hetchy Water & Power
Permit Type: Email
Site Type: RadMet
Site is located on a terrace on a ridgeline part way up the hill above the town of Moccasin overlooking the Don Pedro Reservoir and just west of Priest. The site is located at the fork of two gravel roads and is grassy and treeless. The land drops off to the south ( photo ), west ( photo ) and north ( photo ), and rises to the east ( photo ). It has iron rich soil and full sun exposure. There is no nearby shade.
RAD-Met
- AC power to the enclosure comes from an outlet inside a nearby shack ( photo ) and is run through neoprene jacketed wire. A future upgrade would replace the wire with rigid metal conduit. Now AC power comes from a breaker box mounted outside the shack via 12AWG wires run through conduit to the RADMet enclosure
- A 304 stainless steel enclosure is installed on unistrut attached to two 1 ½ in. sch 40 galvanized pipes with concrete footings ( photo ).
- The cell antenna is attached to the top of one of the poles and 900 MHz RF antenna is attached to the other. The GPS antenna is mounted to the top of a piece of unistrut between the two other antennas ( photo ).
- The MRR is mounted on an METEK's aluminum tripod. The tripod is staked to the ground with chain ( photo ). The MRR heater power and MRR data cable runs between the enclosure and the MRR are buried a few inches below the surface in flex conduit ( photo ).
- The disdrometer is mounted on a single 2 in. sch 40 galvanized pipe with a concrete footing ( photo ). Two 8 in. pieces of rebar were inserted perpendicular to the pipe below ground level before concrete was added to the footing. The data cable for the sensor runs through flex conduit. The cable run between the enclosure and the sensor is buried a few inches below the surface.
- A plywood box with solar powered fan covers the enclosure to reduce solar heat gain ( photo ).
- Qty 2 100AH batteries are in a fiberglass enclosure in a stainless steel stand staked to the ground with an aluminum cover. The hookup to the batteries runs through flex conduit to the main enclosure.
SurfaceMet
- The SurfaceMet is installed on a tripod to the east of the RAD-Met enclosure ( photo ).
- The tipping bucket is mounted on top of 1 ½ in. sch 40 galvanized pipe with a concrete footing ( photo ). The data cable is run through flexible aluminum conduit and buried a few inches below the surface ( photo ).
Sensors
| Type | Label | Model | SN | Installed On |
|---|---|---|---|---|
| Air Temperature/Relative Humidity | -- | Campbell Scientific HydgroVue10 | E1608 | June 29, 2021 |
| Anemometer | -- | RM Young 05108 | 178279 | June 29, 2021 |
| Barometer | -- | CS106 | 31140608 | June 29, 2021 |
| Disdrometer | -- | OTT Parsivel2 | 452276 | Aug. 19, 2025 |
| GPS | -- | Septentrio PolaRx5e | 3229599 | June 29, 2021 |
| MRR | -- | Metek MRR2 | 051304 8067 | June 29, 2021 |
| Pyranometer | -- | CS320 | 3090 | July 15, 2021 |
| Tipping Bucket | -- | Texas Electronics TE525MM Tipping Bucket | 78383-1118 | June 29, 2021 |
Other Equipment
| Type | Label | Model | SN | Installed On |
|---|---|---|---|---|
| UPS | None | SX650U | RA3PP8002768 | Dec. 9, 2024 |
| Cell Modem | None | Sierra Wireless RV55 | 2T94220089011014 | June 29, 2021 |
| GPS Antenna | None | Tallysman Wireless VP6050C | VP6050C 191220 0040 (PN:33-605000-01-01 ) | June 29, 2021 |
Funding Sources
| Start | End | Source |
|---|---|---|
| June 29, 2021 | -- | NOAA Bending Angle |