Objective Determination of the Tropopause Using WMO Operational Definitions

Details

• Personal Author:
  McCalla, Carl
• Corporate Authors:
  National Meteorological Center (U.S.)
• NOAA Program & Office:
  NWS (National Weather Service) ; NCEP (National Centers for Environmental Prediction)
• Description:
  "This Office Note describes a numerical method of objectively determining approximate tropopause pressure and temperature values using only mandatory height and temperature data. The numerical method to be described here is a revised version of the method that is briefly outlined in an article that was presented by W.L. Hughes (Ref. 1) before the International Civil Aviation Organization (ICAO) Area Forecast Panel in Montreal, Canada. The major premise upon which this proposed numerical method rests is the WMO operational definition for the tropopause. That definition states that the conventional tropopause is the lowest level at which the lapse-rate decreases to 0.002 °C/m or less, and the average lapse-rate from this level to any level within the next higher 2000 m does not exceed 0.002 °C/m (Refs. 2-3)"--Introduction.
• Content Notes:
  Carl McCalla.
  
  "October 1981."
  
  "This is an unreviewed manuscript, primarily intended for informal exchange of information among NMC staff members."
  
  System requirements: Adobe Acrobat Reader.
  
  Includes bibliographical references.
• Series:
  Office note (National Centers for Environmental Prediction (U.S.)) 246
• Document Type:
  Office Note
• Place as Subject:
  United States
• Rights Information:
  Public Domain
• Compliance:
  Library
• Download URL:
  https://repository.library.noaa.gov/view/noaa/11558/noaa_11558_DS1.pdf
• File Type:
  [PDF - 748.14 KB]
• Collection(s):
  National Weather Service (NWS)
• Main Document Checksum:
  urn:sha256:21c9652cc26d1cb17556e3ef5a2c412c210b2461705cfd9217628eb67fa240da