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Boundary Layer Profile Measurement System
The NCAR Field Observing Facility developed a new tethered-balloon wing system that accurately measures the vertical profile of temperature, wind speed, wind direction, and...- publication PDF
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Aerostatic Lift of Helium and Hydrogen in the Atmosphere
The purpose of this report is to provide a simple and accurate method of making buoyancy calculations of lift gases. A table is included which gives pertinent model atmospheric...- publication PDF
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A Carrier Balloon for Tropical Soundings
During July 1970 to January 1971, a series of tests was conducted to demonstrate the feasibility of obtaining wind data in the tropical troposphere and lower stratosphere by...- publication PDF
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Position Error Calibration of a Pressure Survey Aircraft Using a Trailing Cone
This article does not have an abstract or article summary.- publication PDF
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A Kalman Filter to Improve Measurements of Wind from NSF/NCAR Research Aircraft
To improve the measurements of wind made from NSF/NCAR aircraft, a Kalman filter is developed and applied to archived data files from research projects. The filter is an...- publication PDF
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Balloon Stress-Band Analysis
A test program to photograph tropopause-level balloon ascent failures unexpectedly revealed the presence of a circumferential stress band in certain balloons which failed...- publication PDF
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Strength Characteristics of Grace Cryovac YH Polypropylene Film
This report is part of a series prepared for the Materials Research Project of the NCAR Scientific Balloon Facility in order to extend the reliability and capabilities of...- publication PDF
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Numerical Prediction of the Performance of High Altitude Balloons
This report presents the equations governing the vertical motion of a balloon and reviews recent advances in heat transfer experimentation and theory pertinent to the processes...- publication PDF
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Scientific Justification and Development Plan for a Mid-sized Jet Research Ai...
This document serves to substantiate the strong recommendations received from the scientific community that the acquisition of a mid-sized jet should be NCAR's highest priority...- publication PDF
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Re-Evaluation of Tapes for Reinforcing and Repairing Polyethylene Balloons
This report describes a research and development program conducted for the National Center for Atmospheric Research by the Minnesota Mining and Manufacturing Company, St. Paul,...- publication PDF
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The Relative Accuracy of ALPEX Aircraft Data / an Evaluation of the ALPEX Int...
During the ALPEX progran, three participating large research aircraft - the NCAR Electra, the NOAA P5, and the DFVLR Falcon - joined for an interccmparison flight. Using the...- publication PDF
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Effects of Thermal Cycling on Biaxially Stressed Balloon Films
This report presents the results of an examination of the biaxial strength properties of two commercial balloon films. 0.75 mil VisQueen X-124 and 0.7 mil Winzen StratoFilm were...- publication PDF
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A Survey of Hawaii for Balloon Launch Sites
A group under Dr. Luis Alvarez at the Space Sciences Laboratory, University of California, is preparing a balloon-borne particle physics experiment, designed for recovery at...- publication PDF
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An Aviation Research Facility for the Atmospheric Sciences
In this report a National Aircraft Facility Survey Group was appointed in July 1963. The group was requested to study and report upon requirements for research aircraft and...- publication PDF
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Strength Characteristics of DuPont "Surlyn A" Film
This report is part of a series prepared for the Materials Research Project of the NCAR Scientific Balloon Facility in order to extend the reliability and capabilities of...- publication PDF