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Last Modified: 03/24/05 |
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| Publications |
Loch Vale Metadata Glossary
Loch Vale Hydrology and Water Chemistry
Hydrologic Data
· Units of discharge are expressed as daily averages (of midnight, noon, minimum and maximum flow) in cubic meters per second (cms).
· All stream discharge measurements are recorded at the Loch Outlet at an elevation of 3050m.
Water Chemistry Data
· The Site column describes sample location and position.
| Locations in Loch Vale | Other Locations in RMNP | Position |
| The Loch | Emerald Lake | O = outlet |
| Little Loch Creek | Lake Haiyaha | I = Inlet |
| Andrew's Creek | Lake Husted | IN= Inlet North |
| Andrew's Tarn | Lake Louise | IS= Inlet South |
| Glass Lake | LS=Lake Surface | |
| Sky Pond | LH=Lake Hypolimnion | |
| LM=Lake Metalimnion | ||
| TI =Tarn Limit |
· “-999” refers to missing data.
· RMNP refers to Rocky Mountain National Park
· “TotalDischarge” refers to cumulative discharge from the Loch Outlet from the current sample date to the next sample date.
· “Temp” refers to water temperature in degrees C.
· “FldCond” and “LabCond” refer to field and laboratory conductivity measurements in microsiemens per centimeter (us/cm).
· “FldpH” and “LabpH” refer to field and laboratory pH values.
· “Alk” refers to alkalinity and units are expressed in microequivalents per liter (ueq/L).
· All major anions and cations are expressed in
units of mg/L except Al, Fe, and Mn, which are expressed as micrograms
per liter (ug/L).
· Silica (SiO2) and dissolved organic carbon (DOC) are expressed
in mg/L.
· “TN” refers to total nitrogen and “DON” refers to dissolved organic nitrogen. By taking TN and subtracting out inorganic nitrogen, we calculate DON for stream and precipitation samples starting in the spring of 1999.
Loch Vale Weather
Weather Data
· “Water Resources Division 2m/6m (1991-2002)” refers to weather data from the USGS-WRD station at a height of 2 and 6 meters.
· “Biological Resources Division (1982-1992)” refers to weather data from the USGS-BRD station in Loch Vale.
· Common climate parameters measured for both stations are: solar radiation, 2 meter air temperature, relative humidity, 6 meter wind speed, and 6 meter wind direction. The station is located at an elevation of 3159m.
· Quality assurance results dictate that complete Loch Vale weather data will be filled with BRD data from September 8, 1983-December 31, 1994 and WRD data from January 1, 1995-on.
| WRD VARIABLES | UNITS | BRD VARIABLES | UNITS |
| Daily Avg. QS rad. in | Langleys/hour | Hourly QS rad. in | Watts/m2 |
| Daily Avg. QS rad. out | Langleys/hour | ||
| Daily Avg. QA rad. in | Langleys/hour | ||
| Daily Avg. QA rad. out | Langleys/hour | ||
| Daily Avg. net rad. | Langleys/hour | ||
| Min. 6/2m air temp. | oC | 2m-air temp. | oC |
| Avg. 6/2m air temp. | oC | ||
| Max. 6/2m air temp. | oC | ||
| Min. 6/2m rel. hum. | % | Rel. hum. | % |
| Avg. 6/2m rel. hum. | % | ||
| Max. 6/2m rel. hum. | % | ||
| Max. 6/2m wind speed | mph | 6m wind speed | m/sec. |
| 6/2m EPA wind speed | mph | ||
| 6/2m Camp.wind speed | mph | ||
| 6/2mCamp.vector mag. | mph | ||
| 6/2m EPA UT vector dir. | 360 Degrees | ||
| 6/2m EPA vector dir. sd | 360 Degrees | 6m wind dir. | 360 Degrees |
| 6/2m Camp. vector dir. | 360 Degrees | ||
| 6/2m Camp.vector dir. sd | 360 Degrees | Baro. Press. | Millibars |
Loch Vale and Fraser Soil Temperature
· Soil temperature data are recorded using Onset Optic StowAway temperature hobos and data are collected hourly.
· Temperatures are reported in degrees C.
· Hobos are located in the center of all control and fertilized plots and are buried at a depth of approximately 5 cm.
· Missing data are recorded as "-999."
· New probes were installed in each plot on 9/12/2003 for Loch Vale sites and 9/16/2003 for Fraser sites.
· Data from the new probes were appended to the existing database at these above mentioned dates due to suspect data from old probes (probes have ~5 year lifetime.)