ASTM D5741

ASTM D5741 is the ASTM standard for characterizing surface wind using a wind vane and rotating anemometer. It provides a technical framework for describing wind direction and wind speed measurements gathered from these common instruments, helping users interpret surface wind conditions in a consistent way. This standard is relevant when reliable wind characterization is needed for monitoring, reporting, or comparing field observations across locations and time.

Purpose of ASTM D5741

The purpose of ASTM D5741 is to define a practice for characterizing surface wind with a wind vane and rotating anemometer. By focusing on these instruments, the standard supports consistent measurement and description of near-surface wind conditions. It is intended to help users work from a common technical basis when collecting and presenting wind data, which can improve comparability and reduce ambiguity in documentation, testing, and field assessment.

Common use cases of ASTM D5741

ASTM D5741 is commonly used wherever surface wind needs to be measured or summarized with a wind vane and rotating anemometer. That may include site monitoring, field studies, meteorological observations, and technical reporting where wind direction and speed are important inputs. The standard is especially useful when the goal is to characterize conditions in a repeatable way so results can be compared across instruments, locations, or observation periods.

Why ASTM D5741 matters

ASTM D5741 matters because surface wind data are often used in decisions that depend on consistency and traceability. A recognized ASTM practice can support compliance efforts, improve quality control, and make procurement or evaluation of wind-related measurements more straightforward. It also helps reduce uncertainty when comparing data from different setups, since the practice is centered on a defined method for characterizing wind using established instrument types.

• Surface wind characterization
• Wind vane and rotating anemometer use
• Consistent wind direction and speed reporting
• Field observation and monitoring support
• Comparable technical wind data