ET50 Calculator

ET50 Calculator calculator can be used to estimate the heat stress on plants by combining temperature and humidity data.

Input Parameters

Calculation Results

Calculation Formula

ET50 = 1.98 * (T - 14.5) - 0.55 * (100 - RH) - 0.03 * (T - 14.5) * (100 - RH) + 0.336 * (T - 14.5)² - 0.016 * (T - 14.5) * (100 - RH)²

Where:
T = Temperature (°C)
RH = Relative Humidity (%)

Result

ET50: -- °C

ET50 Calculator Calculator Usage Guide

Learn how to use the ET50 Calculator calculator and its working principles

How to Use the ET50 Calculator

  1. Enter the current temperature in degrees Celsius (°C).
  2. Enter the current relative humidity as a percentage (%).
  3. Click the "Calculate" button to compute the ET50 value.
  4. The result will be displayed in degrees Celsius (°C).

Understanding ET50

ET50 is a measure used in agriculture to estimate the heat stress on plants. It combines temperature and humidity data to give a single value representing the stress level. A higher ET50 value indicates greater heat stress on plants.

Formula Explanation

The formula used to calculate ET50 is based on empirical studies and takes into account the combined effects of temperature and humidity on plant stress. The formula is:

ET50 = 1.98 * (T - 14.5) - 0.55 * (100 - RH) - 0.03 * (T - 14.5) * (100 - RH) + 0.336 * (T - 14.5)² - 0.016 * (T - 14.5) * (100 - RH)²

Where:

  • T = Temperature (°C)
  • RH = Relative Humidity (%)