Instrument : Rain Gauge (RAIN)
The tipping bucket rain gauge consists of a funnel that collects and directs precipitation into a seesaw container that tips after a pre-set amount of liquid. When the seesaw tips, it sends an electrical signal that is counted by a recording device. There are no tipping bucket rain gauges currently installed in the Southern Great Plains. However, there are active tipping bucket rain gauges in the Tropical Western Pacific and the North Slope of Alaska climate facilities.
The weighing precipitation gauge consists of a storage container, which is weighted to record the mass of precipitation. Some models measure the mass of precipitation using a pen on a rotating drum or by using a vibrating wire attached to a data logger. The advantage of this type of rain gauge is that it can measure all forms of precipitation. This rain gauge it currently installed at the Southern Great Plains, Tropical Western Pacific, and Eastern North Atlantic sites.
In 2006, two disdrometers were installed at the Southern Great Plains and Tropical Western Pacific facilities to add details about the precipitation being gathered. The disdrometers are capable of measuring the velocity and size distribution of precipitation. These measurements are important to studying the evolution of water droplets.
The following measurements are those considered scientifically relevant.
|Eastern North Atlantic|
|ENA||C1||Browse Data||Graciosa Island, Azores, Portugal|
|Southern Great Plains|
|SGP||C1||Browse Data||Central Facility, Lamont, OK|
|Tropical Western Pacific|
|TWP||C1||Browse Data||Browse Plots||Central Facility, Manus I., PNG||retired|
|TWP||C3||Browse Data||Central Facility, Darwin, Australia||retired|
|ARM Mobile Facility|
|ASI||M1||Browse Data||Ascension Island, South Atlantic Ocean; AMF1|
|MAO||S10||Browse Data||Manacapuru, Amazonas, Brazil; Supplemental Site|
|TMP||M1||Browse Data||U. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AMF2|
Mary Jane Bartholomew