water content

(redirected from Soil moisture)
Also found in: Acronyms, Encyclopedia.

water content 

Water in a contact lens expressed as a percentage of the total mass of the lens in its hydrated state under equilibrium conditions with physiological saline solution containing 9 g/l sodium chloride at a temperature of 20 ± 0.5ºC and with a stated pH value.
where M is the mass of hydrated lens, m is the mass of dry lens.The US Food and Drug Administration (FDA) has categorized hydrogel contact lenses into four groups according to their water content and their surface reactivity (referred to as ionic if it contains more than 0.2% ionic material, and nonionic otherwise). Group 1: water content less than 50% and non-ionic. Group 2: water content greater than 50% and non-ionic. Group 3: water content less than 50% and ionic. Group 4: water content greater than 50% and ionic.
References in periodicals archive ?
Soil moisture in the lanes ranged from 20 to 66 percent at Site 1 and from 27 to 88 percent at Site 2.
The mission will map the entire globe every two to three days for at least three years and provide the most accurate and highestresolution maps of soil moisture ever obtained.
Increased soil porosity would improve water infiltration into the soil will increase the soil moisture content.
5 min) between measurements with each device used here is not considered important because soil moisture extraction by a crop is insignificantly small over such a short period.
Although soil moisture behaviour changes at different soil depths, in this work we only characterised topsoil moisture because processes of runoff generation and soil water storage are mainly controlled by the mechanisms of soil surface water repellency, topsoil infiltration, and changes in topsoil moisture (Gomi et al.
Here we suggest an additional possibility--that higher children's BPb levels may be related to a combination of weather, soil moisture, and wind that effectively remobilizes and makes more bioavailable the diffuse soil Pb.
The residue of terminated cover crops will help improve soil moisture absorption when rains do return.
2, 2015 /PRNewswire-USNewswire/ -- Mission managers for NASA's Soil Moisture Active Passive (SMAP) observatory have determined that its radar, one of the satellite's two science instruments, can no longer return data.
independent experts on issues of tree protection for the evaluation of soil moisture monitoring and the assessment of the trees, especially in the area of the stuttgart palace gardens (lower, middle and upper castle garden) and rosenstein parks during the phase of the groundwater lowering by construction work for the production of the low station and the adjacent sections 1.
WASHINGTON (CyHAN)- Scientists working with data from NASA's Aquarius instrument have released worldwide maps of soil moisture, showing how the wetness of the land fluctuates with the seasons and weather phenomena.
It further advised the farmers of Barani areas to cultivate Rabi crops, including wheat, in time so that present soil moisture may fully be utilized.
Soil moisture is a fundamental hydrological state variable and its spatial pattern is important for understanding hydrological processes.