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Artículos de revistas sobre el tema "Soil moisture Measurement"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 6 de septiembre de 2023

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1

Bretreger, David, Greg Hancock, In-Young Yeo, Dr Cristina Martinez, Dr Tony Wells, Tristan Cox, Veikko Kunkel, and Abraham Gibson. "Comparing the reliability of two soil moisture probes for high clay content NSW soils." Water e-Journal 8, no. 3 (2022): 1–17. http://dx.doi.org/10.21139/wej.2022.035.

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The accurate measurement of soil moisture can be a time-consuming task. Soil moisture is highly variable, and it can be difficult to capture spatially and temporally. While remote sensing has become a popular and ever-improving tool, on-ground measurement is required for both calibration, validation, and evaluation of any emerging technology. Many applications commonly require or use a relative value of soil moisture to assess the temporal persistency of moisture regimes across catchments or agricultural landscapes. This paper compares on-ground indirect soil moisture measurements from two com

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2

Groenevelt, P. H. "Hydrostatics of frozen soil." Canadian Journal of Soil Science 90, no. 3 (August 1, 2010): 403–8. http://dx.doi.org/10.4141/cjss09032.

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An outline is presented of the relations between the energy status of water and the content of liquid water and ice in frozen soils. The theory formulates the dependence of the soil moisture characteristic (moisture retention curve) of a frozen soil on the load pressure and the temperature. This formulation requires the definition of the envelope-pressure potentials and the frost potentials of the soil moisture and the ice present in the soil. These potentials are expressed in terms of the void ratio, the moisture ratio, the ice ratio, the moisture ratio equivalent, and the ice ratio equivalen

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3

Sui, Ruixiu, Horace C. Pringle, and Edward M. Barnes. "Soil Moisture Sensor Test with Mississippi Delta Soils." Transactions of the ASABE 62, no. 2 (2019): 363–70. http://dx.doi.org/10.13031/trans.12886.

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Abstract. One of the methods for irrigation scheduling is to use sensors to measure the soil moisture level in the plant root zone and apply water if there is a water shortage for the plants. The measurement accuracy and reliability of the soil moisture sensors are critical for sensor-based irrigation management. This study evaluated the measurement accuracy and repeatability of the EC-5 and 5TM soil volumetric water content (SVWC) sensors, the MPS-2 and 200SS soil water potential (SWP) sensors, and the 200TS soil temperature sensor. Six 183 cm × 183 cm × 71 cm wooden compartments were built i

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4

Nolan, M., D. R. Fatland, and L. Hinzman. "Dinsar measurement of soil moisture." IEEE Transactions on Geoscience and Remote Sensing 41, no. 12 (December 2003): 2802–13. http://dx.doi.org/10.1109/tgrs.2003.817211.

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5

Chanasyk, D. S., and M. A. Naeth. "Field measurement of soil moisture using neutron probes." Canadian Journal of Soil Science 76, no. 3 (August 1, 1996): 317–23. http://dx.doi.org/10.4141/cjss96-038.

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Soil moisture measurements are critical to all field studies of soil-plant-water relationships. Dependable and reliable techniques are required to provide such measurements. Neutron probes were developed more than 40 years ago and continue to be used today. They offer many advantages as a measurement technique, the most important of which is non-destructive, repetitive measurements of soil moisture. Much research has been focused on overcoming the two major limitations of neutron probes: measuring near-surface soil moisture and a smoothing of moisture data at sharp moisture discontinuities in

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6

Campora, Marina, Anna Palla, Ilaria Gnecco, Rossella Bovolenta, and Roberto Passalacqua. "The laboratory calibration of a soil moisture capacitance probe in sandy soils." Soil and Water Research 15, No. 2 (March 11, 2020): 75–84. http://dx.doi.org/10.17221/227/2018-swr.

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Determining and mitigating landslide risk is a technical-scientific objective, particularly for the protection and proper territorial management and planning. The slope stability depends on the pore pressure distribution, which is influenced by the saturation front propagation through the unsaturated zone, whose monitoring is useful to understand any possible instabilities. Such monitoring may be undertaken by sensors based on the measurement of the relative dielectric permittivity. Reliable relationships between the measurement and the soil moisture are necessary. The main objective of this s

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7

Rasche, Daniel, Markus Köhli, Martin Schrön, Theresa Blume, and Andreas Güntner. "Towards disentangling heterogeneous soil moisture patterns in cosmic-ray neutron sensor footprints." Hydrology and Earth System Sciences 25, no. 12 (December 22, 2021): 6547–66. http://dx.doi.org/10.5194/hess-25-6547-2021.

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Abstract. Cosmic-ray neutron sensing (CRNS) allows for non-invasive soil moisture estimations at the field scale. The derivation of soil moisture generally relies on secondary cosmic-ray neutrons in the epithermal to fast energy ranges. Most approaches and processing techniques for observed neutron intensities are based on the assumption of homogeneous site conditions or of soil moisture patterns with correlation lengths shorter than the measurement footprint of the neutron detector. However, in view of the non-linear relationship between neutron intensities and soil moisture, it is questionab

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8

M. T. Morgan, R. K. Wood, and R. G. Holmes. "Dielectric Moisture Measurement of Soil Cores." Transactions of the ASAE 36, no. 1 (1993): 17–22. http://dx.doi.org/10.13031/2013.28308.

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9

Song, Wenlong, Yizhu Lu, Yu Wang, Jingxuan Lu, and Haixian Shi. "A Pixel-Scale Measurement Method of Soil Moisture Using Ground-Penetrating Radar." Water 15, no. 7 (March 28, 2023): 1318. http://dx.doi.org/10.3390/w15071318.

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Ground validation of remote sensing soil moisture requires ground measurements corresponding to the pixel scale. To date, there is still a lack of simple, fast and reasonable methods for soil moisture measurement at pixel scale between point measurements and remote sensing observations. In this study, a measurement method of soil moisture using ground-penetrating radar (GPR) was proposed for pixel scale. We used a PulseEKKOTM PRO GPR system with 250 MHz antennas to measure soil moisture by Fixed Offset (FO) method in four 30 × 30 m2 plots chosen from the desert steppe. This study used a random

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10

Levy, Joseph S., and Jessica T. E. Johnson. "Remote Soil Moisture Measurement from Drone-Borne Reflectance Spectroscopy: Applications to Hydroperiod Measurement in Desert Playas." Remote Sensing 13, no. 5 (March 9, 2021): 1035. http://dx.doi.org/10.3390/rs13051035.

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The extent, timing, and magnitude of soil moisture in wetlands (the hydropattern) is a primary physical control on biogeochemical processes in desert environments. However, determining playa hydropatterns is challenged by the remoteness of desert basin sites and by the difficulty in determining soil moisture from remotely sensed data at fine spatial and temporal scales (hundreds of meters to kilometers, and hours to days). Therefore, we developed a new, reflectance-based soil moisture index (continuum-removed water index, or CRWI) that can be determined via hyperspectral imaging from drone-bor

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11

Yao, Jun-Cheng, Bin Shi, Jie Liu, Meng-Ya Sun, Ke Fang, Jian Yao, Kai Gu, Wei Zhang, and Ji-Wen Zhang. "Improvement and Performance Evaluation of a Dual-Probe Heat Pulse Distributed Temperature Sensing Method Used for Soil Moisture Estimation." Sensors 22, no. 19 (October 7, 2022): 7592. http://dx.doi.org/10.3390/s22197592.

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Large-scale measurements of soil moisture play a critical role in many fields, such as agriculture, hydrology, and engineering. The distributed temperature sensing (DTS) technology, based on a dual-probe heat pulse (DPHP), is a novel approach to realizing large-scale soil moisture estimation. However, the application of the method is limited by the complex optical cable layout, calculation algorithm, and lack of standardized heating strategy. In this paper, an improved DPHP-DTS method considering the soil bulk density was proposed. The measurement accuracy of the DPHP-DTS method under differen

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12

Labelle, Eric R., and Dirk Jaeger. "Influence of Saturated Organic Matter on the Accuracy of In-Situ Measurements Recorded with a Nuclear Moisture and Density Gauge." Croatian journal of forest engineering 42, no. 2 (January 14, 2021): 357–67. http://dx.doi.org/10.5552/crojfe.2021.762.

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The impact of machines on forest soils is regularly assessed and quantified using absolute bulk density, which is most frequently obtained by soil cores. However, to allow for repeated measurements at the exact same locations, non-destructive devices are increasingly being used to determine soil bulk density and moisture content in field studies. An example of such a device is a nuclear moisture and density gauge (NMDG), originally designed as a control measurement for soil bulk density and moisture content in geotechnical applications. Unlike road construction or foundation projects that use

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13

Candra, Adi. "Distribusi Moisture Content Pada Zona Perakaran Tanaman (Zona Tidak Jenuh) Perkebunan Teh Gambung, Bandung Selatan." Dinamika Rekayasa 8, no. 1 (February 4, 2012): 12. http://dx.doi.org/10.20884/1.dr.2012.8.1.53.

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<p>Research on moisture content distribution in the root zone is intended to determine the moisture content in accordance with tea plant and its distribution pattern. Measurement of moisture content by using gypsum block as media liaison between the soil and water in the soil moisture is conducted by means Bouyoucos Soil Meter. Moisture content is obtained by performing measurements on a laboratory and field scale. Laboratory scale test is emphasized on calibration of the gypsum block to be applied in the measurement field. Site measurement was made in three drill holes, each 150 cm in d

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14

Eckertová, Terézia, Karol Holý, Monika Müllerová, Ivan Sýkora, and Jozef Masarik. "EMANATION OF RADON-222 FROM DIFFERENT SOIL TYPES AND SOIL GROUPS." Radiation Protection Dosimetry 198, no. 9-11 (August 2022): 771–77. http://dx.doi.org/10.1093/rpd/ncac132.

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Abstract In this paper, we deal with measurement of 222Rn emanation coefficient (Ke) of soils using an accumulation method. We created a database of Ke values of dried soils for various soil types and soil groups, classified by the size of soil particles. For 18 different soil samples we obtained the Ke values in range 0.083–0.234. The analysis of radon emanation dependence on moisture for seven of these samples shows two different trends which were related to soil texture (clays or sands). Soils with predominant sandy particles prove weak dependence on moisture and Ke values from minimum valu

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15

Kharisma, Mila, Iwan Sugriwan, and Ade Agung Harnawan. "Pembuatan Alat Ukur Multi Kanal Kelembaban Tanah Berbasis Mikrokontroler Arduino Uno." Jurnal Fisika FLUX 1, no. 1 (January 26, 2019): 107. http://dx.doi.org/10.20527/flux.v1i1.6153.

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Soil moisture very important to be measured per unit of time, especially in peat soils that have high porosity value. The measuring device for detection of soil moisture is realized on this research. The soil moisture measuring instrument is built by three main blocks of an instrument, that are four soil moisture sensors YL-69s, Arduino Uno as measurement processing unit that equipped with sd card as data storage unit and 20x4 character LCD as a display unit of the measurement result. The span value of the measuring device ranges from 0% to 95 % with deviation from 0% to 4.88%.The advantages o

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16

Dargar, Shashi K., and Viranjay M. Srivastava. "Moisture content investigation in the soil samples using microwave dielectric constant measurement method." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 1 (February 1, 2020): 704. http://dx.doi.org/10.11591/ijece.v10i1.pp704-710.

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The microwaves of typical frequency ranges of 3 GHz to 30 GHz have been in use for remote sensing applications which are progressing rapidly. The microwaves can sense existing moisture in any material that absorbs moisture such as soil or vegetation. In case of soils which may be comprised of variable mix proportionate of solids, liquids or gases and distinct textures subjected to the associated size and the arrangements of soil particles. Hence, the moisture absorption by a specific type of soil used to be different. The inherent physical and electrical properties such as color, texture, grai

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17

Serrarens, Daniel, Jim L. MacIntyre, Jan W. Hopmans, and Luis H. Bassoi. "Soil moisture calibration of TDR multilevel probes." Scientia Agricola 57, no. 2 (June 2000): 349–54. http://dx.doi.org/10.1590/s0103-90162000000200024.

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Time domain reflectometry (TDR) probes are increasingly used for field estimation of soil water content. The objective of this study was to evaluate the accuracy of the multilevel TDR probe under field conditions. For this purpose, eight such TDR probes were installed in small plots that were seeded with beans and sorghum. Data collection from the probes was such that soil moisture readings were automated and logged using a standalone field unit. Neutron probe measurements were used to calibrate the TDR probes. Soil-probe contact and soil compaction were critical to the accuracy of the TDR, es

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18

Gruhier, C., P. de Rosnay, S. Hasenauer, T. Holmes, R. de Jeu, Y. Kerr, E. Mougin, et al. "Soil moisture active and passive microwave products: intercomparison and evaluation over a Sahelian site." Hydrology and Earth System Sciences 14, no. 1 (January 22, 2010): 141–56. http://dx.doi.org/10.5194/hess-14-141-2010.

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Abstract. This paper presents a comparison and an evaluation of five soil moisture products based on satellite-based passive and active microwave measurements. Products are evaluated for 2005–2006 against ground measurements obtained from the soil moisture network deployed in Mali (Sahel) in the framework of the African Monsoon Multidisciplinary Analysis project. It is shown that the accuracy of the soil moisture products is sensitive to the retrieval approach as well as to the sensor type (active or passive) and to the signal frequency (from 5.6 GHz to 18.8 GHz). The spatial patterns of surfa

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19

J. W. Hummel, I. S. Ahmad, S. C. Newman, K. A. Sudduth, and S. T. Drummond. "SIMULTANEOUS SOIL MOISTURE AND CONE INDEX MEASUREMENT." Transactions of the ASAE 47, no. 3 (2004): 607–18. http://dx.doi.org/10.13031/2013.16090.

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20

W. W. Wallender, G. L. Sackman, K. Kone, and M. S. Kaminaka. "Soil Moisture Measurement by Microwave Forward-Scattering." Transactions of the ASAE 28, no. 4 (1985): 1206–11. http://dx.doi.org/10.13031/2013.32412.

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21

S.U., Susha Lekshmi, D. N. Singh, and Maryam Shojaei Baghini. "A critical review of soil moisture measurement." Measurement 54 (August 2014): 92–105. http://dx.doi.org/10.1016/j.measurement.2014.04.007.

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22

Bobrov, P. P., T. A. Belyaeva, E. S. Kroshka, and O. V. Rodionova. "Soil Moisture Measurement by the Dielectric Method." Eurasian Soil Science 52, no. 7 (July 2019): 822–33. http://dx.doi.org/10.1134/s106422931905003x.

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23

Donald C. Erbach. "Measurement of Soil Bulk Density and Moisture." Transactions of the ASAE 30, no. 4 (1987): 0922–31. http://dx.doi.org/10.13031/2013.30500.

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24

Liu, Jie, Mangilal Agarwal, Kody Varahramyan, Ernest S. Berney, and Wayne D. Hodo. "Polymer-based microsensor for soil moisture measurement." Sensors and Actuators B: Chemical 129, no. 2 (February 2008): 599–604. http://dx.doi.org/10.1016/j.snb.2007.09.017.

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25

Adamo, F., G. Andria, F. Attivissimo, and N. Giaquinto. "An Acoustic Method for Soil Moisture Measurement." IEEE Transactions on Instrumentation and Measurement 53, no. 4 (August 2004): 891–98. http://dx.doi.org/10.1109/tim.2004.831126.

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Jackson, T. J., and T. J. Schmugge. "Surface soil moisture measurement with microwave radiometry." Acta Astronautica 35, no. 7 (April 1995): 477–82. http://dx.doi.org/10.1016/0094-5765(94)00288-w.

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27

Rasheed, Muhammad Waseem, Jialiang Tang, Abid Sarwar, Suraj Shah, Naeem Saddique, Muhammad Usman Khan, Muhammad Imran Khan, et al. "Soil Moisture Measuring Techniques and Factors Affecting the Moisture Dynamics: A Comprehensive Review." Sustainability 14, no. 18 (September 14, 2022): 11538. http://dx.doi.org/10.3390/su141811538.

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The amount of surface soil moisture (SSM) is a crucial ecohydrological natural resource that regulates important land surface processes. It affects critical land–atmospheric phenomena, including the division of energy and water (infiltration, runoff, and evaporation), that impacts the effectiveness of agricultural output (sensible and latent heat fluxes and surface air temperature). Despite its significance, there are several difficulties in making precise measurements, monitoring, and interpreting SSM at high spatial and temporal resolutions. The current study critically reviews the methods a

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KASYANOV, A. E., D. D. KOBOZEV, and ISMAIL KHEBA. "SOIL MOISTURE GRADIENT HYDROMETER." Prirodoobustrojstvo, no. 4 (2020): 44–47. http://dx.doi.org/10.26897/1997-6011-2020-4-44-47.

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There is proposed the design of a gradient soil moisture meter which includes humidity sensors placed along the horizons of the soil profile, it registers humidity in some soil layers,and it is tested under field conditions. The moisture meter consists of a case, contact block, lead cables, battery, digital voltmeter and capacitive humidity sensors. The contact block is located in the neck of the case, cables are inside the case and capacitive sensors are placed horizontally along the layers of the soil profile. The battery and digital voltmeter are connected to the contact block and placed on

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29

Damtie, Bekele Bedada, Daniel Ayalew Mengistu, Daniel Kassahun Waktola, and Derege Tsegaye Meshesha. "Impacts of Soil and Water Conservation Practice on Soil Moisture in Debre Mewi and Sholit Watersheds, Abbay Basin, Ethiopia." Agriculture 12, no. 3 (March 16, 2022): 417. http://dx.doi.org/10.3390/agriculture12030417.

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Soil and water conservation (SWC) practices have been widely implemented to reduce surface runoff in the Debre Mewi watershed. However, studies on the issue have disproportionately focused on the lost or preserved soils, expressed in tons per hectare, while the impacts on the lost or preserved moisture were inadequately addressed. This study aimed to investigate the impacts of soil and water conservation practice on soil moisture in the Debre Mewi and Sholit watersheds, Abbay basin, Ethiopia. We compared soil moisture between the treated (Debre Mewi) and the untreated (Sholit) watersheds with

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Farahani, Ali, Majid Ghayoomi, and Jennifer M. Jacobs. "Soil Moisture Active Passive (SMAP) Satellite Data and Unsaturated Soil Response." E3S Web of Conferences 382 (2023): 03006. http://dx.doi.org/10.1051/e3sconf/202338203006.

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The importance of degree of soil saturation in geotechnical problems resulted in inclusion of unsaturated soil mechanics in various applications for several decades. However, in spite of recent progress in remotely sensed soil moisture measurement, geotechnical community has not yet taken advantage of these advances in analysis of unsaturated soils. NASA launched its Soil Moisture Active Passive (SMAP) satellite in 2015 with the aim of providing surface and root zone soil moisture content over the global land surface at 3-day average intervals. SMAP, as a widely validated and near-real-time da

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Hervai, András, Ervin Pirkhoffer, Szabolcs Ákos Fábián, Ákos Halmai, Gábor Nagy, Dénes Lóczy, and Szabolcs Czigány. "Interpolation and 3D visualization of soil moisture." Landscape & Environment 11, no. 1 (December 31, 2017): 23–34. http://dx.doi.org/10.21120/le/11/1/3.

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Adaptation to climate change demands the optimal and sustainable water management in agriculture, with an inevitable focus on soil moisture conditions. In the current study we developed an ArcGIS 10.4. platform-based application (software) to model spatial and temporal changes in soil moisture in a soy field. Six SENTEK Drill & Drop soil moisture sensors were deployed in an experimental field of 4.3 hectares by the contribution of Elcom Ltd. Soil moisture measurement at each location were taken at six depths (5, 15, 25, 35, 45 and 55 cm) in 60-minute intervals. The model is capable to spat

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Supriatna, Haris, Titi Widaretna, and Jajat Sudrajat. "Sistem Monitoring Tanaman Cabai untuk Meningkatkan Hasil Panen." JURNAL COMPUTECH & BISNIS 16, no. 2 (December 15, 2022): 105–11. http://dx.doi.org/10.56447/jcb.v16i2.8.

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A chili plant monitoring system has been created to increase crop yields, this system monitors soil pH and soil moisture in order to increase the growth of chili plants so that the yield obtained is maximum. This system uses Arduino UNO as its microcontroller with output in the form of automatic plant watering and automatic fertilizer. Important variables to support plant growth are soil moisture, soil pH, and the right watering time and duration. Measurement of soil pH and soil moisture is carried out using soil moisture sensor and soil pH sensor. While the output produced from the water pump

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Tury, Rita, Szilárd Tóth, Réka Láposi, and László Fodor. "Investigating the change of soil resistence and moisture content in the case of pre-crops and soil tillage systems." Analecta Technica Szegedinensia 14, no. 1 (June 8, 2020): 19–23. http://dx.doi.org/10.14232/analecta.2020.1.19-23.

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The experiments were set up in large parcels at the Fleischmann Rudolf Research Institute of Eszterházy Károly University located in Kompolt. We carried out measurements by using a Penetronik penetrometer (electrical soil cone penetrometer) at the experimental site, where brown grassland soil as well as clay washed brown forest soil are the typical soil types. The device used primarily serves to investigate the physical and water management properties of soils suitable for agricultural cultivation. The instrument is a hand-operated tool for registering soil mechanical resistance in Newtons (0-

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Seo, Min-Guk, Hyo-Sang Shin, and Antonios Tsourdos. "Soil Moisture Retrieval Model Design with Multispectral and Infrared Images from Unmanned Aerial Vehicles Using Convolutional Neural Network." Agronomy 11, no. 2 (February 23, 2021): 398. http://dx.doi.org/10.3390/agronomy11020398.

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This paper deals with a soil moisture retrieval model design with airborne measurements for remote monitoring of soil moisture level in large crop fields. A small quadrotor unmanned aerial vehicle (UAV) is considered as a remote sensing platform for high spatial resolutions of airborne images and easy operations. A combination of multispectral and infrared (IR) sensors is applied to overcome the effects of canopies convering the field on the sensor measurements. Convolutional neural network (CNN) is utilized to take the measurement images directly as inputs for the soil moisture retrieval mode

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González-Zamora, A., N. Sánchez, A. Gumuzzio, M. Piles, E. Olmedo, and J. Martínez-Fernández. "VALIDATION OF SMOS L2 AND L3 SOIL MOISTURE PRODUCTS OVER THE DUERO BASIN AT DIFFERENT SPATIAL SCALES." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-7/W3 (April 30, 2015): 1183–88. http://dx.doi.org/10.5194/isprsarchives-xl-7-w3-1183-2015.

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An increasing number of permanent soil moisture measurement networks are nowadays providing the means for validating new remotely sensed soil moisture estimates such as those provided by the ESA’s Soil Moisture and Ocean Salinity (SMOS) mission. Two types of in situ measurement networks can be found: small-scale (100&ndash;10000 km<sup>2</sup>), which provide multiple ground measurements within a single satellite footprint, and large-scale (>10000 km<sup>2</sup>), which contain a single point observation per satellite footprint. This work presents the results of

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Mašíček, Tomáš, František Toman, Martina Vičanová, and Věra Hubačíková. "Evaluation of the infiltration capacity of soil in a winter wheat stand during the growing season 2010." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 59, no. 6 (2011): 225–34. http://dx.doi.org/10.11118/actaun201159060225.

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The aim of the presented paper was to map the course of infiltration during the growing season of 2010 in a winter wheat stand on a selected locality in the Sazomín cadastral area on the basis of selected hydro-physical properties of soil (specific weight, reduced volume weight, actual soil moisture, absorptivity, retention water capacity, porosity, capillary, semi-capillary and non-capillary pores and aeration) evaluated from the analyses of undisturbed soil samples. In order to assess the infiltration capacity of soil at the U Jasana locality in the season April–October, four surveys were re

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Babaeva, G. R. "ISSUES OF OPTIMAL SOIL MOISTURE CONTROL BASED ON DUAL-BAND SENSORS." Kontrol'. Diagnostika, no. 292 (October 2022): 18–23. http://dx.doi.org/10.14489/td.2022.10.pp.018-023.

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The water content in the soil is spatially heterogeneous, which depends on climatic factors, land use, topography and properties of the soil itself. Currently, radio frequency soil moisture meters are the most common. The technical documentation of these devices indicates that the measurement error in them can reach 1 %. However, as the results of known experimental measurements show, such a result is achieved only after calibration with respect to a specific type of soil. Calculations show that in the absence of such calibration, the error can grow up to 15 %. In this regard, spectral methods

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Y.*, Olotu, Omoakhalen A.I., Ososomi A.S., Gbalaja Mayowa, Alhassan A.I., and Ayilaran C.I. "Sensitivity of PR2 Capacitance Soil Moisture Meter for Irrigation Scheduling." Indian Journal of Production and Thermal Engineering 1, no. 3 (August 10, 2021): 1–5. http://dx.doi.org/10.35940/ijpte.b2007.081321.

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Accurate soil moisture content measurement is essential for designing a robust irrigation scheduling and integrated water resources management (I.W.R.M.). Capacitance-based sensors have widely been used to monitor soil moisture at different measuring depths coupled with continuous and instantaneous outputs. This study's objective was to evaluate the PR2 capacitance moisture meter's performance on mineral and organic soil water content. The outputs of PR2 in m3 /m3 and vol.% were compared with gravimetrically measured soil moisture. The R.M.S.E. measurement at Site A at the first and second rep

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Y., Olotu, Omoakhalen A.I., Ososomi A.S., Gbalaja Mayowa, Alhassan A.I, and Ayilaran C.I. "Sensitivity of PR2 Capacitance Soil Moisture Meter for Irrigation Scheduling." Indian Journal of Production and Thermal Engineering 1, no. 3 (August 10, 2021): 1–5. http://dx.doi.org/10.54105/ijpte.b2007.081321.

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Accurate soil moisture content measurement is essential for designing a robust irrigation scheduling and integrated water resources management (I.W.R.M.). Capacitance-based sensors have widely been used to monitor soil moisture at different measuring depths coupled with continuous and instantaneous outputs. This study’s objective was to evaluate the PR2 capacitance moisture meter’s performance on mineral and organic soil water content. The outputs of PR2 in m3/m3 and vol.% were compared with gravimetrically measured soil moisture. The R.M.S.E. measurement at Site A at the first and second repl

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40

Scott, Bethany L., Tyson E. Ochsner, Bradley G. Illston, Christopher A. Fiebrich, Jeffery B. Basara, and Albert J. Sutherland. "New Soil Property Database Improves Oklahoma Mesonet Soil Moisture Estimates*." Journal of Atmospheric and Oceanic Technology 30, no. 11 (November 1, 2013): 2585–95. http://dx.doi.org/10.1175/jtech-d-13-00084.1.

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Abstract Soil moisture data from the Oklahoma Mesonet are widely used in research efforts spanning many disciplines within Earth sciences. These soil moisture estimates are derived by translating measurements of matric potential into volumetric water content through site- and depth-specific water retention curves. The objective of this research was to increase the accuracy of the Oklahoma Mesonet soil moisture data through improved estimates of the water retention curve parameters. A comprehensive field sampling and laboratory measurement effort was conducted that resulted in new measurements

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41

Voitovich, O. P., and V. P. Kovalchuk. "MONITORING RESEARCH OF FIELD SOIL MOISTURE TO PROVIDE IRRIGATION MANAGEMENT ON THE BASE OF AN EXPERIMENTAL AND CALCULATION METHOD." Міжвідомчий тематичний науковий збірник "Меліорація і водне господарство", no. 2 (December 12, 2019): 113–20. http://dx.doi.org/10.31073/mivg201902-179.

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The article highlights the actual problems of monitoring studies of soil moisture and meteorological indicators for informational support of irrigation management systems. On the basis of literature analysis it is shown that soil moisture control can be carried out both directly on the results of soil moisture measurements and using calculated methods. In the presence of automatically obtained meteorological forecasting data, irrigation decisions are made using an experimental calculation method. Monitoring studies are part of the experiment and are used as feedback in soil moisture control.&#

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42

Chen, Jia, Fengmin Hu, Junjie Li, Yijia Xie, Wen Zhang, Changqing Huang, and Lingkui Meng. "Evaluation of SMAP-Enhanced Products Using Upscaled Soil Moisture Data Based on Random Forest Regression: A Case Study of the Qinghai–Tibet Plateau, China." ISPRS International Journal of Geo-Information 12, no. 7 (July 15, 2023): 281. http://dx.doi.org/10.3390/ijgi12070281.

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The evaluation of satellite soil moisture is a big challenge owing to the large spatial mismatch between pixel-based satellite soil moisture products and point-based in situ measurements. Upscaling in situ measurements to obtain the “true value” of soil moisture content at the satellite grid/footprint scale can make up for the scale difference and improve the validation. Many existing upscaling methods have strict requirements regarding the spatial distribution and quantity of soil moisture sensors. However, in reality, soil-moisture-monitoring networks are commonly sparse with low sensor dens

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43

Li, Ximing, and Cheng Sun. "Synergistic Effect of Carbamide and Sulfate Reducing Bacteria on Corrosion Behavior of Carbon Steel in Soil." International Journal of Corrosion 2018 (August 1, 2018): 1–14. http://dx.doi.org/10.1155/2018/7491501.

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Synergistic effect of carbamide and sulfate reducing bacteria (SRB) on corrosion behavior of carbon steel was studied in soils with moisture of 20% and 30%, by soil properties measurement, weight loss, polarization curve, and electrochemical impedance spectroscopy. The results show that carbamide decreased the soil redox potential and increased soil pH. In soil without SRB, carbamide made corrosion potential of Q235 steel much more positive and then inhibited corrosion. Meanwhile, in soil with SRB, 0.5 wt% carbamide restrained SRB growth and inhibited biocorrosion of Q235 steel. Corrosion rate

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44

Anh, Vo Thi Lan, Doan Minh Chung, Ngo Tuan Ngoc, and K. G. Kostov. "Research of Soil Moisture Retrieval Algorithms for Processing Radiometry Data." Communications in Physics 25, no. 3 (March 3, 2016): 283. http://dx.doi.org/10.15625/0868-3166/25/3/5561.

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Since 2012, the experts of Space Technology Institute have carried out the field experiments to obtain a high-resolution dataset of microwave radiometers for land surface parameters (soil moisture, soil temperature, vegetation water content), in order to improve the soil moisture retrieval methodology. L-band radiometers were used for measuring the brightness temperature of the bare soil. Field experiments for passive microwave remote sensing of soil moisture were carried out in Hoai Duc District in 2012. L-band microwave radiometers were used for measuring the microwave emission of bare agric

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Shamir, O., N. Goldshleger, U. Basson, and M. Reshef. "MAPPING SPATIAL MOISTURE CONTENT OF UNSATURATED AGRICULTURAL SOILS WITH GROUND-PENETRATING RADAR." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (June 24, 2016): 1279–85. http://dx.doi.org/10.5194/isprs-archives-xli-b8-1279-2016.

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Soil subsurface moisture content, especially in the root zone, is important for evaluation the influence of soil moisture to agricultural crops. Conservative monitoring by point-measurement methods is time-consuming and expensive. In this paper we represent an active remote-sensing tool for subsurface spatial imaging and analysis of electromagnetic physical properties, mostly water content, by ground-penetrating radar (GPR) reflection. Combined with laboratory methods, this technique enables real-time and highly accurate evaluations of soils' physical qualities in the field. To calculate subsu

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46

Shamir, O., N. Goldshleger, U. Basson, and M. Reshef. "MAPPING SPATIAL MOISTURE CONTENT OF UNSATURATED AGRICULTURAL SOILS WITH GROUND-PENETRATING RADAR." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B8 (June 24, 2016): 1279–85. http://dx.doi.org/10.5194/isprsarchives-xli-b8-1279-2016.

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Soil subsurface moisture content, especially in the root zone, is important for evaluation the influence of soil moisture to agricultural crops. Conservative monitoring by point-measurement methods is time-consuming and expensive. In this paper we represent an active remote-sensing tool for subsurface spatial imaging and analysis of electromagnetic physical properties, mostly water content, by ground-penetrating radar (GPR) reflection. Combined with laboratory methods, this technique enables real-time and highly accurate evaluations of soils' physical qualities in the field. To calculate subsu

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47

de Carvalho Faria Lima Lopes, Bruna, Laís de Carvalho Faria Lima Lopes, and Alessandro Tarantino. "Indirect measurements of water content using TDR-inferred dielectric permittivity and electrical resistivity." E3S Web of Conferences 92 (2019): 02005. http://dx.doi.org/10.1051/e3sconf/20199202005.

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The measurement of moisture distribution in Engineered Barrier Systems (EBS) in salt mines and deep geological disposals is essential in order to monitor fluid ingress and record data for long-term security analyses. Additionally, soil moisture content has influence over the mechanical properties of the soil as well as plant growth, soil stability and contaminant transport to cite some. Therefore, finding affordable and reliable ways to determine moisture content, quickly and in the field without sampling, is of great interested among people in different subject areas. Time-domain reflectometr

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Le Morvan, Aurélie, Mehrez Zribi, Nicolas Baghdadi, and André Chanzy. "Soil Moisture Profile Effect on Radar Signal Measurement." Sensors 8, no. 1 (January 21, 2008): 256–70. http://dx.doi.org/10.3390/s8010256.

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Harris, Nicholas R., and Alexander Stonard. "A Printed Capacitance Sensor for Soil Moisture Measurement." Proceedings 2, no. 13 (December 3, 2018): 705. http://dx.doi.org/10.3390/proceedings2130705.

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The introduction and evaluation of a novel sensor design for a soil moisture sensor that can be manufactured on a PCB. The PCB acts as a capacitor, which uses the fringe effect to allow changes in permittivity of its surrounding medium to be identified, and this capacitance is measured via relatively simple charge and discharge times between two voltages through a series resistor. The system is implemented in a low-cost microcontroller, and coupled with being printable on a PCB, has the potential to make a highly cost-effective sensor. A custom Android Bluetooth application was produced to pro

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Xia Jiaxin, 夏佳欣, 范成发 Fan Chengfa, 王可嘉 Wang Kejia, and 刘劲松 Liu Jinsong. "Soil Moisture Measurement Based on Terahertz Transmission Spectrum." Laser & Optoelectronics Progress 48, no. 2 (2011): 023001. http://dx.doi.org/10.3788/lop48.023001.

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