OKTA

In meteorology, an okta is a scale of measurement used to describe the amount of cloud cover at any given location such as a weather station. Sky conditions are estimated in terms of how many eighths of the sky are covered in cloud, ranging from 0 oktas (completely clear sky) through to 8 oktas (completely overcast). In addition, in the SYNOP code there is an extra cloud cover indicator '9' indicating that the sky is totally obscured (i.e. hidden from view), usually due to dense fog or heavy snow. When used in weather charts, okta measurements are shown by means of graphic symbols (rather than numerals) contained within weather circles, to which are attached further symbols indicating other measured data such as wind speed and wind direction. Although relatively straightforward to measure (visually, for instance, by using a mirror ), oktas only estimate cloud cover in terms of the area of the sky covered by clouds. They do not account for cloud type or thickness, and this limits their use for estimating cloud albedo or surface solar radiation receipt. Cloud oktas can also be measured using satellite imagery from geostationary satellites equipped with high-resolution image sensors such as Himawari-8. Similar to traditional approaches, satellite images do not account for cloud composition.…

OKTA was founded in 1978¹ and is a refinery in the Balkan area. OKTA is part of one of the biggest groups for the refining, distribution, and trade of crude oil, oil derivatives and petrochemicals – the Hellenic Petroleum group. Apart from its main activities, OKTA has developed its own retail network, which consists of 26 rebranded petrol stations.

Pipeline

A pipeline linking the port of Thessaloniki with the OKTA oil refinery outside Skopje began full operations in July 2002. The pipeline, which took three years to build, will provide North Macedonia with a source of oil and, in the longer term, there are plans to export refined oil products to neighboring areas. The project was partly financed by the European Bank for Reconstruction and Development.

Products

Oil derivatives produced at OKTA include: liquefied petroleum gas naphtha motor gasoline diesel fuel fuel oil

Environmental

OKTA is the only company in North Macedonia which has complete physical, chemical and biological waste water treatment.

References

Text derived from https://en.wikipedia.org/w/index.php?oldid=1340546631 under CC BY-SA 4.0; modifications have been made.