The phrase "a datum for" is correct and usable in written English.
It can be used when referring to a specific piece of information or data that serves a purpose or function in a particular context.
Example: "The researcher provided a datum for the study that highlighted the correlation between sleep and productivity."
Alternatives: "a piece of data for" or "an item of information for".
Using the ASCE 74 as a datum for normalization, a code ratio (CR) is evaluated for various parameters to assess the discrepancy between the codes.
To smooth each of these six standardised variables, a 3-week (21-day) moving average (eg, a datum for 21 July would represent the average of all days between 1 and 21 July, a datum for 22 July would represent the average of all days between 2 and 22 July, etc) was used.
East west difference data were found by searching Swarm L1b 1 Hz magnetic data for a datum from Swarm Charlie, with latitude closest to a selected Swarm Alpha datum, within a maximum time difference of 50 s.
Later that year, the United States Army Corps of Topographical Engineers set up a camp with an astronomical/magnetic station to serve as a datum base for a survey of the Florida Keys and the Great Florida Reef.
These findings had important implications for clarifying the essence of microtopography of purple soil area and laying a theoretical basis and a support datum for harnessing measure of sloping farmland.
We propose the design of an observation station to establish a reliable datum for displacement and deformation analysis at the first working-face subsidence observation station of Liuzhuang Mine.
Also, documenting how these structures change through time within lineages is a primary datum for evolutionary study.
It was pretty good, though I don't remember anything else about it specifically (a sobering datum for someone in my position).
The network thus provides a reliable datum for analyzing the laws of surface displacement and deformation induced by mining.
The TIGER/Line files use a local datum for Hawaii, but the beta version dated April 27, 2006 erroneously assumed that the datum was NAD83.
The van Rhijn function is a basic datum for the local portion of the Galaxy, but it is not necessarily representative for an area larger than the immediate solar neighbourhood.
