U+33DC "㏜" Square Sv Unicode Character

U+33DC "㏜" Square Sv is a CJK Compatibility Ideograph representing the abbreviation for the Sverdrup unit, a measure of volume transport commonly used in oceanography to quantify the flow of ocean currents. This character is encoded in the Unicode standard as part of the CJK Compatibility block, which includes symbols and abbreviations from East Asian scripts that were originally defined for compatibility with earlier character sets. The "Sv" abbreviation stands for Sverdrup, named after the Norwegian oceanographer Harald Sverdrup, and one Sverdrup equals one million cubic meters per second. The square glyph format encloses the letters "Sv" within a rectangular shape, reflecting its use in technical and scientific contexts to denote this specific unit of measurement.