Metadata

On this page you will find main metadata related with the indicator you have selected.
Other metadata is also available, on the Metada System website, through next button Metadata System

 

 Deadweight of commercial vessels (DWT)
Characteristic Description
Name Deadweight of commercial vessels (DWT) by Dimension size class of vessels (DWT) and Type of flow of vessels; Monthly
Regularity Monthly
Source Statistics Portugal, Maritime transport of passengers and goods survey
First available period January 2007
Last available period June 2025
Dimensions
  • Data reference period (Month)
  • Declaring port (Portugal)
  • Dimension size class of vessels (DWT)
  • Type of flow of vessels
Concepts
  • REFERENCE PERIOD:  Period to which the information refers and which may be a specific day or a time interval (month, fiscal year, calendar year, among others).
  • COMMERCIAL VESSEL:  A vessel for the transport of passengers and/or goods.
  • TONNAGE DEADWEIGHT (TDW):  The difference between the weight of a ship with its maximum authorised cargo and the weight of the unladen ship. This difference, which may be expressed in metric tonnes, corresponds to the weight of the cargo, passengers and their baggage, fuel and lubricants, water and provisions. TDW is normally used to express the tonnage of ships / tankers (oil tankers, etc.).
Definition Difference between the tonnage of the vessel with the maximum authorised load and the tonnage of the light vessel.
Measure unit (symbol) Deadweight tone (DWT)
Power of 10  0
Observations
Last update date 24/09/2025


information presented in 10/11/2025