The phrase "aridity ratio" is correct and usable in written English.
It can be used in discussions related to climate, geography, or environmental science to describe the relationship between precipitation and evaporation in a specific area.
Example: "The aridity ratio of the region indicates that it experiences significantly less rainfall than evaporation, leading to drought conditions."
Alternatives: "dryness index" or "aridness coefficient".
The performance of SM and SMS, relative to DAR is shown to be generally correlated with the at-site aridity ratio.
We introduce a performance-weighted transfer method that weights each estimator in proportion to its performance, as predicted by basin descriptors including at-site precipitation, aridity ratio, drainage area and ratios of those descriptors between the ungauged and index site.
In the hydrological jargon, the Budyko hypothesis refers to the hypothesis according to which the long-term water and energy balances of the Earth's surface are largely dependent upon a single aridity ratio φ = Ex/P (where P represents long-term precipitation [mm/yr] and Ex long-term maximum evaporation [mm/yr]).
The hydrologic ratios, such as, aridity index, evaporation ratio and runoff coefficients are useful indicators to quantify the atmospheric water dynamics at watershed to regional scales.
It's about aridity, arid hearts, and finding the link to get the flow".
Therefore, we selected two layers which are likely to be important to C. decresii given that the species is a semi-arid, rocky habitat specialist: mean annual aridity index (the monthly ratio of precipitation to potential evaporation and an indicator of dryness) and topographic relief (the range in elevation).
The United Nations Environmental Programme (UNEP), defined an aridity index (AI) by the ratio of the annual precipitation and potential evapotranspiration (PET) totals.
A regional steady-state lake water balance model was developed that uses simple, yet easily estimated or obtained, data to generate an aridity index (potential evapotranspiration to precipitation ratio) to predict changes in lake basin area to lake surface area ratio, a non-dimensional lake-basin property that can be easily obtained from digital maps.
Aridity index is defined as the ratio of annual precipitation (mm) and mean annual temperature (°C) +10 (de Martonne 1926).
In this work, specific humidity was used instead of PET and a new aridity index (Iq) has been defined using the ratio of annual precipitation totals and annual mean specific humidity (Sh).
Within each latitude, two locations were chosen so as to differ markedly in aridity index (AI; Willmott and Feddema 1992), the ratio of mean annual precipitation (MAP) to potential evapotranspiration (PET).
