Each UpTempO data file has in its header an explicit list of variables
identifying the columns of the data set. Below is a complete list of variable names you
may encounter.
| VARIABLE NAME | DESCRIPTION |
|---|
| year | The year of the data record |
| month | The month of the data record |
| day | The day of the month of the data record |
| hour | The hour of the data record (GMT). Ranges from 0 to 23. |
| Latitude (N) | The latitude of the data record |
| Longitude (E) | The longitude of the data record |
| Ocean Pressure (dB) at Sensor #n (Nominal Depth = xx m) | Ocean pressure reported at the stated sensor number with Nomimal Depth. All buoys with sensors on a string below the surface have at least one pressure sensor. |
| Temperature (Celsius) at Sensor #n (Nominal Depth = xx m) | The temperature at the stated sensor. |
| Salinity (psu) at Sensor #n (Nominal Depth xx m) | The salinity at the stated sensor. |
| Tilt (degrees) at Sensor #n (Nominal Depth xx m) | The tilt at the stated sensor, i.e., angle from vertical. This is provided by Sound9 sensors as a measure of how much the sensor cable has titled from a nominal vertical orientation. We have not used this information (as of April, 2023), instead using ocean pressure sensors to account for this effect. |
| Estimated Depth (m) at Sensor #n (Nominal Depth xx m) | Some buoys report an estimated depth for each thermistor based on the ocean pressure values and a cable model.
|
| Sea Level Pressure (mBar) | Sea Level Pressure in mBar |
| Battery Voltage (V) | Battery Voltage |
| Submergence Percent | Percent of the time over the previous hour that the buoy was submerged. |
| Wind Speed (m/s) | Magnitude of the wind |
| Wind Direction | Direction the wind is coming from, with 0 degrees = North, and 90 degrees = East |
| Air Temperature (Celsius) | Temperature of the air in Celsius. |
| GPS Quality | Flag indicating if the GPS is working properly to give accurate latitude and longitude.
flag = 0 and flag = 1 indicate no GPS fix was acquired
flag = 2 is a 2D fix
flag = 3 is a 3D fix
Level 2 data require that GPS quality flag = 3.
|
| LEVEL 2 ADDED QUANTITIES |
|---|
| Calculated Depth at nominal depth xx (m) | More accurate depths for the thermistors,
calculated based on ocean pressure values. |
| Open Water or Ice (1=ice, 2=open water) | Indicates whether the buoy is in/near ice or in water. |
| First wet thermistor | Indicates the upper most thermistor that is in water, where 0=the upper most
thermistor, 1=the next thermistor down in the water column, etc. This quantity is intended to provide guidance on how to use thermistor data when some thermistors have been pulled up into an ice ridge. |
| Sea Surface Temperature | The ocean temperature measurement from the first wet thermistor. |
| Depth of Sea Surface Temperature | The calculated depth of the ocean temperature measurement from the first wet thermistor. |
| First wet conductivity sensor | Indicates the upper most conductivity sensor that is in water, where 0=the upper most
sensor, 1=the next sensor down in the water column, etc. |
| Sea Surface Salinity | The ocean salinity measurement from the first wet conductivity sensor. |
| Depth of Sea Surface Salinity | The calculated depth of the ocean salinity measurement from the first wet conductivity sennsor. |
