Gradistat V 91 Free 2021 Jun 2026

Written originally by Dr. Simon J. Blott and published alongside Professor Kenneth Pye, this tool has become a foundational standard in geomorphology, geology, and environmental science. By running seamlessly inside standard spreadsheet software, it eliminates the need for expensive, proprietary statistical software while providing publication-ready charts and sediment classification data. What is GRADISTAT and Why is it Used?

The software was originally made available as a supporting information file alongside its publication in Earth Surface Processes and Landforms . You can still access this link directly from the journal's website:

: Statistics (mean, mode, sorting, skewness, kurtosis) are calculated arithmetically/geometrically in metric units and logarithmically in phi units. gradistat v 91 free

The direct search for a free, official version of GRADISTAT v9.1 leads to a complex reality. The original software, including the updated version 8.0, was made available as a free download from the journal's supplementary information for a period. However, the primary distribution channel noted in recent records is the author's website (kpal.co.uk), which states that a fully revised version, GRADISTAT-PRO, is under development.

To download and install Gradistat V 9.1 for free, follow these steps: Written originally by Dr

Instant calculation of grain size parameters.

For researchers working with unconsolidated sediments, GradiStat v9.1 offers an unparalleled combination of accessibility, speed, and rigorous, publication-ready statistics. Whether you choose to use the classic Excel version or one of its modern successors, the legacy of GradiStat continues to power our understanding of sedimentary processes, from the deepest ocean floors to the highest desert dunes. You can still access this link directly from

Handles both standard sieve intervals ( ) and non-standard, custom data.

I can provide a custom data template or guide you through the calculation logic. Share public link

Choose your preferred statistical methods from the options panel. You can select whether you want the calculations to output in metric or Phi units, and choose between the Folk and Ward or Method of Moments frameworks. Step 3: Run the Program