Measurement Heights
The tables below describe the nominal heights of meteorological measurements, as OCS buoys have evolved over time. Height units are meters above approximate buoy water line. Refer to Data Reports and metadata for additional information.
High-Latitude Buoys with Two Flex Data Systems
| SENSOR | 2014 | 2015-Present |
|---|---|---|
| Flex Wind (Primary) | 4.2 | 4.2 |
| Flex Wind (Secondary) | 3.8 | 3.8 |
| Vaisala Combo | 2.5 | N/A |
| Radiation | 3.6 | 3.6 |
| Rain | 3.1 | 3.1 |
| ATRH | 2.6 | 2.6 |
| Paros BP | 2.5 | 2.5 |
| Druck BP | 2.4 | 2.4 |
| Sea Surface Temperature and Salinity* (depth below buoy waterline) |
1 | 1 |
High-Latitude Buoys with ATLAS & Flex Data Systems
| SENSOR | 2007 | 2008-2009 | 2010-2013 |
|---|---|---|---|
| ATLAS Wind | 4.2 | 4.2 | 4.4 |
| Flex Wind | 3.7 | 3.7 | 3.9 |
| Vaisala Combo | N/A | 3.7 | 3.8 |
| Radiation | 3.6 | 3.6 | 3.6 |
| Rain | 3.6 | 3.6 | 3.6 |
| ATRH | 2.6 | 2.6 | 2.6 |
| Paros BP | 2.6 | 2.6 | 2.6 |
| Druck BP | 2.5 | 2.5 | 2.5 |
| Sea Surface Temperature and Salinity* (depth below buoy waterline) |
1 | 1 | 1 |
Toroid Buoy at KEO with ATLAS Data System
| SENSOR | 2004-2006 |
|---|---|
| ATLAS Wind | 4.0 |
| Radiation | 3.5 |
| Rain | 3.5 |
| ATRH | 3.0 |
| Sea Surface Temperature and Salinity (depth below buoy waterline) |
1.0 |
*Since 2007, the measurement point for Sea Surface Temperature and Salinity is known to have varied between 1.0 - 1.3m depth. Uncertainties in actual measurement depth are introduced by changes in buoy waterlines, variation between instrument mounting locations, and alteration of measurement points with different instrument versions. For these reasons, the nominal depth for the measurement is stated as 1m.