<b>A comprehensive grain-size database of surface sediments from the Taklamakan Desert</b>

The database consists of three Excel files: files 1, 2, and 3 describe the grain-size characteristics of sediments from the Taklamakan Desert, with the second and third files derived from calculations based on the data in file 1.<b>File 1:</b> Grain Size Database of Sediments from the Taklamakan DesertSpecifically, File 1 contains the following data fields: 1) geomorphic type, including mobile dunes, vegetated hummock dunes, fixed or semi-fixed sandy land, interdune, deflation areas, fluvial-lacustrine sediments, and mountain sediments; 2) latitude and longitude; 3) sample ID; 4) natural frequency of sediments (The volumetric percentage content (%) for each interval within the 0 to 3500 μm range). This file provides fundamental data on the sediment composition across different landscapes, serving as the basis for the subsequent derivation of statistical grain size parameters and particle fractions in Files 2 and 3.<b>File 2:</b> Grain Size Parameters Database of Sediments from the Taklamakan DesertThe parameters are calculated based on the data in File 1 and are expressed in two formats: micrometers (μm) and phi (ϕ) units. File 2 contains the following data fields: 1) geomorphic type; 2) grain size parameters, the mean grain size, sorting, skewness, and kurtosis were included; 3) sample ID. These indicators can measure the energy of the sediment transport medium and transport mode.<b>File 3:</b> Particle Fraction Database of Sediments from the Taklamakan DesertThis file provides the content of each sediment sample in terms of its constituent particle fractions. These fractions are calculated based on the grain size components from File 1 and are expressed as volume percentages. File 3 contains the following data fields: 1) geomorphic type; 2) particle fraction; 3) sample ID. This file summarizes the compositional characteristics of the sediments, offering insights into the relative abundance of different particle fractions across various geomorphic units of the Taklamakan Desert.<br><br>