Reply on RC1

Bartosz Zawilski

doi:10.5194/gi-2021-20-ac1

Abstract

The importance of the soil evaporation concerns our main life supports source for agriculture or for climate changes predictions science. A simple to operate instrument, based on non-steady state (NSS) technique, made for soil evaporation measurement appears then suitable. However, because the NSS chamber technique is highly invasive, special care should be provided to correct the wind influence on the evaporation process. As the wind influence on the evaporation is depending on numerous and not real-time monitorable variables, in order to make the measurements easily corrigible on a bare soil with a unique variable – wind speed (Ws), whatever is the soil nature, soil texture, and others soil or air meteorological variables – a self-calibrating chamber with corresponding protocol called Auto-calibrated Soil Evapo-Respiration Chamber (ASERC) was developed. A simple protocol followed by this chamber allows to determine the soil evaporation wind susceptibility (Z) and to correct the measurements achieving 0.95 accuracy confidence. Some interesting finding on sandy and clayey soils evaporation measured during a laboratory calibration will also be reported.

Highlights

In the context of global temperature rising, as the water is our main life support key resource to the food production and the water vapor is one of the most abundant greenhouse gases in the Earth atmosphere, it is important to gather 20 knowledge about soil evaporation
Under no wind, the common point (CP) is not visible, one can deduce that the cracks or/and the wind presence is necessary for it. 610 Conclusion. The aim of these studies was to build a self-calibrating chamber based on an non-steady state (NSS) technique and a simple working protocol to correct the measured data versus the wind
The wind eddy pressure fluctuations generated by the above canopy penetrate below the canopy forcing the soil gases efflux

Summary

Introduction

In the context of global temperature rising, as the water is our main life support key resource to the food production and the water vapor is one of the most abundant greenhouse gases in the Earth atmosphere, it is important to gather 20 knowledge about soil evaporation. The soil evaporation consumes about 20% of the 25 solar radiation energy (Trenberth et al 2006). Energy absorbed on the soil surface or in the soil subsurface during the evaporation process, lowering down soil temperature, released later in the higher atmosphere layer when condensing, warming up the air. Good et al 30 (2015) shows that the main water vapor source (65%) is the soil and not surface waters.

Methods

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Discussion

Conclusion