The focus of this page is to gain insights on how the atmospheric pressure is distributed around the earth and its effect on the prevailing winds and ocean surface currents, as well as shipborne meteorological instruments and their operation, various weather systems, reporting procedures and recording systems, the meteorological information, and the ocean currents and waves.
Hence, this page was established to provide education and training resources to benefit the students and instructors in the Maritime Profession, especially the students of Capitol University particularly the College of Maritime Education and anyone interested in learning the basics of Marine meteorology and oceanography. The PowerPoint download is provided for free and is the own work of 2/M John Jaromahum, my co-instructor at Capitol University, College of Maritime Education.
Click here to see the list of Meteo Downloads.
Aneroid Barometer is considered to be the most accurate. The simple Aneroid Barometer is in the form of corrugated capsule. By means of linkage system its movement can be magnified which is shown by a moving pointer. The pointer rotates over a dial graduated in hectopascals or Millibars
The elastic properties of the metal capsule change with the time and the instrument should therefore be checked at frequent intervals against an accurate barometer to determine index error. Barometer is also used to observe the change in pressure over a period using a knurled knob. Free Powerpoint on Barometer >>
Free PDF on Barometer >>
- A branch of science that deals with the atmosphere of a planet particularly that of the earth, the most important application of which is the analysis and prediction of weather. (Columbia encyclopedia)
- A discipline involving the study of the atmosphere and its phenomena. (Sci Tech Encyclopedia)
- (from Greek: μετέωρον, meteoron, "high in the sky"; and λόγος, logos, "knowledge") is the interdisciplinary scientific study of the atmosphere that focuses on weather processes and forecasting. (Wikipedia)
Meteorological Instruments
Barometer Used to determine atmospheric pressure
* Aneroid Barometer - Expansion or contraction of the vacuum chamber, caused by a change in air pressure, forces the pointer to move.
* Mercurial Barometer – It uses a long glass tube, open at one end and closed at the other. Air pressure is measured by observing the height of the column of mercury in the tube.
Thermometer Is a device that measures temperature or temperature gradient using a variety of different principles Hygrometer or Psychrometer
Hygrometers are instruments used for measuring relative humidity. A simple form of a hygrometer is specifically known as a "psychrometer" and consists of two thermometers . Relative humidity is a term used to describe the amount of water vapor that exists in a gaseous mixture of air and water.
Anemometer
* Anemometer is a device for measuring wind speed, and is one instrument used in a weather station.
Wind Vane
* A weather vane, also called a wind vane, is a movable device attached to an elevated object such as a roof for showing the direction of the wind. Very often these are in the shape of cockerels and are called weather cocks. Arrows are also popular, but a multitude of designs have been used.
Prop Anemometer A Helicoid propeller anemometer incorporating a wind vane for orientation.
Free Powerpoint on Meteorological Instruments>>
Free PDF download on Meteorological Instruments >>