The phrase 'a significant increasing trend' is correct and usable in written English.
It is typically used to indicate something that is getting bigger or more frequent over time. For example, "The last decade has seen a significant increasing trend in the demand for organic food."
In the case of the USB, the minimum temperature showed a significant increasing trend as the computed p-value is lower than the significance level alpha = 0.05.
Wu et al. (2011) found a significant increasing trend of drought frequency, particularly in North China.
We found a significant increasing trend in the proportion of farm equipment crashes for traffic volume (Z = 15.82, p < 0.0001) (not tabled).
It is a significant increasing trend as a result of centralized authentication sessions result in a huge pile of messages traveling between the RADIUS server and APs.
Injury prevalence showed a significant increasing trend across tertiles of total fatigue score: 19.6, 21.7, and 30.8% for lowest, middle and highest tertiles, respectively (trend p-value = 0.037).
The breath measurements prior to and after repeated active smoking exhibited a significant increasing trend for both the pre- and post-exposure concentrations.
A significant increasing trend in mean annual temperature is detected over the period 1955 2011 in the whole catchment and all subsections.
Spring temperatures, which show a significant increasing trend, are the main co-variable responsible for the observed changes in the streamflow timing.
In that case, when the value Z is positive, the time-series data have a significant increasing trend, and when the value Z is negative, there is a significant decreasing trend.
For the HP series, there was a significant increasing trend in total power from day 1 to 3 in the R group (p = 0.0249); LF% also increased in the R group only (p = 0.0125).
Soil temperatures at 1.0 m depth under asphalt pavement in the northern areas of the Tanggula Mountains have shown a significant increasing trend, but a significantly decreasing trend in the southern Tanggula Mountains during the period of record.
