Skip to main content

National Hail Research Experiment (NHRE) Records

Identifier:  - 04-NHRE

Scope and Contents

This collection consists of the records of the National Hail Research Experiment, an experiment aimed at making a contribution to the question of the operational and economic feasibility of hail suppression. Records include budget information, correspondence, newsletters, planning documents, research proposals, reports, and weather modification licensing materials. Selected materials from this collection have been digitized are available in the NCAR Library's digital repository, OpenSky.


  • 1959-1981
  • Majority of material found in 1970-1979
  • Other: Date acquired: 1986-10-28


Conditions Governing Access

There are no access restrictions on this collection.

Conditions Governing Use

Not all of the material in the collection is in the public domain. Researchers are responsible for addressing copyright issues.


4.00 Linear Feet

Language of Materials



Arrangement is by material type.

The collection consists of four series in five boxes:

Series I: Records of the National Hail Research Experiment Series II: Reports of the National Hail Research Experiment Series III: Research and Data Series IV: Photographic Materials and Oversize

Materials are arranged alphabetically by folder title, and within folders, chronologically.

Physical Access Requirements

The collection must be viewed in the Archives during normal business hours.

Source of Acquisition

MMM/EOL/Contracts Office/Information Office

Method of Acquisition

The National Hail Research Experiment records were acquired from a few sources; some materials were assembled from files belonging to the Contracts office and Information Office. Other materials were sent to the Archives from Jim Fankhauser in the Mesoscale and Microscale Meteorology division of NCAR

Appraisal Information

Duplicate materials and routine correspondence were removed from the collection. Reports by outside entities were removed from the collection as they are available in the NCAR Library.

Accruals and Additions

Addition to collection in October 2010, accession #2010.022. These materials were donated by EOL/MMM as part of their clean up of records held at off-site storage.

Processing Information

The collection was processed in February 2010. Materials in the Archives grouped together as the Weather Modification Collection were consolidated with materials labeled "NHRE." Records were then sorted into categories of like items and rehoused in acid-free folders. Paper clips and binder clips were removed. Oversize materials were flattened and stored in flat files. Additional materials were received in October 2010 and were added to the collection in December 2010.

Kathleen Legg
Description rules
Describing Archives: A Content Standard
Language of description
Script of description
Code for undetermined script
Language of description note

Repository Details

Part of the National Center for Atmospheric Research (NCAR) Archives Repository