A sampling station is any place where data are collected. A siteID is an identifier that this site is referred to as. There may be multiple siteID elements. Only one should be labeled as the defaultID (set attribute defaultID=true) Multiple siteID elements are allowed because site identifiers may change, and different observation networks may refer to the same site with different identifiers. True if this is the main identifier that this service uses to access this site. default value is false. The name of the observation network that this site identification is use for. An identifier of the site, the type of identifier must be specified. the default time zone for this site (+00:00) and if this site shifts to daylight savings time (attribute: usesDaylightSavingsTime) text True is a webservice has transformed the time zone from the original data. the measurment units of the value elements in this values element True is a webservice has transformed the data from the original units. A brief name of the variable that could be shown in a menu A detailed descriptn of the variable. May include processing information and other details. The units of the measurement. A list of options. Options are key-value pair elements that control how a variable maght be utilized in a serviced. Examples are in the MODIS web service. Information is aggreated over land or ocean or both. The plotarea option can include: plotarea=land, plotarea=land, plotarea=landocean the default time zone for this site (+00:00) and if this site shifts to daylight savings time (attribute: usesDaylightSavingsTime) the standard abbreviation for this time zone (GMT; EST) Hours and minutes offset for this time zone (+00:00). The latitude of the site in a decimal degrees as calculated in terms of the given datum. The longitude of the site in a decimal degrees as calculated in terms of the given datum.