| I. Crater Data: The crater database file here is a listing of over 1500 explosive and impact craters, including both small laboratory experiments and the large explosive terrestrial craters formed by conventional and nuclear explosives. It has been compiled over the past 25 years by Robert Schmidt, Kevin Housen, Chuck Wauchope and Keith Holsapple. Its current form and maintenance is by Keith Holsapple and Kevin Housen. The database file is an EXCEL file that lists the details of the event, and the resulting crater dimensions. It allows user inputs and selections for plotting selected subsets by such as geology type, source type, depths of burial, and so on. A knowledgeable EXCEL user can reform, recalculate and analyze the data anyway she/he wishes. The EXCEL file also includes a page based on the crater scaling forms of Holsapple, Housen and Schmidt in various publications. Here, for various generic material types, the user can input an impactor size and velocity and the calculation unfold the dimensionless forms and give the estimated crater dimensions for both simple and complex craters. The scaling forms and resulting estimate are based on a synthesis of the database. |
| EXCEL Crater Data File (v1.3) Database Read Me File; A short description of the database content: (WORD) (pdf) Crater Scaling Read Me File: (Word) (pdf) |
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II. The Crater Estimator: Craters from Explosives and Impacts A tool to estimate the crater sizes and shapes for a wide variety of impact and explosive events. |
| The Application: HTML The User manual: HTML |
| This is an application that allows you to determine the crater size, shape and other features for both explosion and impact craters for terrestrial and solar-system cratering, and for a very wide range of conditions: from lab-sized to 100's of kilometer basins. It includes simple excavation craters in either of the strength or gravity-dominated regimes, and also includes the large complex craters seen on the moon and other solar system bodies. It is based on the extensive cratering database at http://keith.aa.washington.edu/craterdata/index.html synthesized using the scaling methods developed over the last 20 years by Keith Holsapple, Robert Schmidt and Kevin Housen. |
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