- Storm Watch over USA with Stream Flood Status
- Happy New 2017 Year!
- Happy New 2016 Year!
- Изготовление 4х-электродной установки для почвенного картирования
- С Новым 2015 Годом!
- Tips and Tricks for linking data in ArcGIS
- Use of GPR in Agriculture
- Converting multiple KML files into geodatabase for GIS project in ArcMap Desktop
- 2D Dipole-Dipole Electrical Tomography with LandMapper
- Building geodatabase in ArcMap 10 Desktop
Геофизика
Frequently asked questions (FAQ) on electrical geophysical equipment and software
landviser ср, 03/21/2012 - 16:57How to convert conductivity to resistivity?
Are there any difference between LandMapper ERM-01 and other equipment available on the market?
How your equipment calculates electrical resistivity?
How to calculate geometrical coefficient K?
Does electrical resistivity correlate with any soil properties?
Can your equipment measure electrical resistivity/conductivity in soil and water samples?
How to determine the depth of the measurements?
How to convert conductivity to resistivity?
Electrical resistivity (ER) is reciprocal to conductivity (EC) and results can be easily recalculated using formula EC=1/ER or vice versa ER=1/EC. Electrical resistivity is more convenient to use on non-saline soils, where conductivity can be mSm/m, while resitivity measures in 102-103 Ohm m range. 1000 Ohm m equals 1 mSm/m. You can find more conversions to ppm, TDS, grains of salt in this flyer.
Geophysical and Geostatistical Software
Landviser, LLC has developed a 1D interpretation software for soil vertical electrical sounding (iVES), which available for FREE download. We also an authorized distributor for a number of special software for interpretation of geophysical surveys such as RES2DINV and RES3DINV, resistivity inversion imaging by GEOTOMO Software (Malaysia); RadExPro, seismic interpretation by DECO Geophysical software company (Russia).
Current complete catalog of Landviser, LLC
RES2DINV and RES3DINV tech specs
Happy New 2017 Year!
landviser сб, 12/31/2016 - 22:29
All of us at Landviser, LLC (USA) and IP GeoPro (Russia) are wishing our friends, collegues, customers and everybody else around the world Happy Holidays and a Great New Year! Looking forward to change, trust and fairness for all in 2017!!! We, as a small geo-consulting company, would continue to do our best in studying our Morther Earth and bringing Joy to the World!
- Блог пользователя landviser
- Войдите или зарегистрируйтесь, чтобы получить возможность отправлять комментарии
Happy New 2016 Year!
landviser чт, 12/24/2015 - 20:23All of us at Landviser, LLC (USA) and IP GeoPro (Russia) are wishing our friends, collegues, customers and everybody else around the world Happy Holidays and Great New Year!
- Блог пользователя landviser
- Войдите или зарегистрируйтесь, чтобы получить возможность отправлять комментарии
Geo-Equipment
landviser пт, 08/29/2014 - 20:47Landviser develops and sells unique hand-held geophysical devices and powerful electrical geophysical equipment. We are collaborating with KB "Electrometry", Russia and GeoTOMO Software, Malaysia.
2D Dipole-Dipole Electrical Tomography with LandMapper
landviser пн, 06/02/2014 - 21:40Manual measuring of electrical resistivity 2D cross-section is possible with LandMapper with supplied (optional) or made by user cable set.
There are two modifications of 2D cable set offered and tested by Landviser, LLC:
-
Mobile shallow (~2 m depth) set consisted of two T-style probes (AB and MN dipoles) similar to mapping probes. The dipoles are set at 1 m size with possible separation between dipoles (wire length) no more than 5 meters (n=5).
- Stationary set (~ 14 m depth) where electrodes are hammered on the soil surface along the straight line at one meter distance. Electrodes are simple metal spikes/nails and is sourced locally (are NOT provided by Landviser, LLC). We supply wires with banana-plug connections to LandMapper terminals on one end and alligator clips on the other end to connect with electrodes.
Principle of measurements with both sets is the same for both cable sets and is illustrated by figure below. You can also watch instructional videos on our YouTube Channel - LandviserLLC
Местоположение
Getting started with 2D resistivity interpretation using RES2DINV
landviser пн, 03/24/2014 - 19:27
Presentation, embedded below was developed to bring users up to speed in interpretation of their resistivity data. Class for end users was conducted in Indonesia and included training on field data collection with SibER-48 using ~ 900 m long profile in Wenner-Schlumberger and pole-dipole (remote electrode) 2D tomography. On the second day users received hands-on instructions on data import into RES2DINV software, quality assurance of the data based on visual approach as well as through RMS of the interpretation model.
General discussion about non-uniquness of the subsurface interpretation modl for 1D, 2D, and 3D representations has followed this class.
Slides can be viewed on http://www.slideshare.net/LarisaGolovko/training-on-res2dinv-and-siber48
Sign up for webinar "Application of Geophysical Methods to Agriculture: Methods Employed"
landviser пт, 02/07/2014 - 19:17- С/Х
- Фермерство
- Агрохимия
- Точное Земледелие
- Загрязнение почв
- Загрязнение воды
- Мелиорация
- Экология
- Геофизика
- Почвоведение
- Вертикальное Электрическое Зондирование
- ЛандМэппер
- эл. картирование почв
- ERM-01
- ERM-02
- ГПР
- электрическое профилирование
- геофизическое оборудование
- под-почвенные изображения
- 4-электродная установка
- ЭП
- оценка участка
- ЭС
- метод естественного потенциала
- Геофизические
- iVES
- RES2DINV
- RES3DINV
- инверсия эл.сопротивления
- бесплатно
- Ag Geophysics group
- Эл. проводимость
- картирование
- мониторинг
- сопротивление
- естественный эл. потенциал
Dr. Larisa Golovko (President of Landviser, LLC) will be presenting "Geophysical Methods of Electrical Resistivity and Self-Potential in Agriculture" in first of
Agricultural Geophysics Webinar Series: "Application of Geophysical Methods to Agriculture: Methods Employed"
A live webinar on the application of geophysics to agriculture will be offered on:
Tuesday, February 18, 2014, from 3pm - 4:30pm EST
(2:00 - 3:30 CST, 1:00 - 2:30 MST, 12:00 - 1:30 PST)
This first in a series of agricultural geophysics webinars will focus on the near-surface geophysical methods presently being used for agricultural purposes, which include resistivity, self-potential, electromagnetic induction, ground penetrating radar, dielectric sensors, VIS/NIR/MIR spectrometry, gamma ray spectrometry, mechanical soil compaction sensors, and ion selective potentiometry. Five presenters will provide a short overview of agricultural geophysical methods during the first 30 minutes of the webinar. The last hour of the webinar will be devoted to a panel discussion with the presenters, who will answer questions from the audience.
Местоположение
- Блог пользователя landviser
- Войдите или зарегистрируйтесь, чтобы получить возможность отправлять комментарии
- Подробнее
Happy New Year 2014 from Landviser LLC
landviser вт, 12/31/2013 - 17:54Dear visitors, clients, collegues and friends!
Landviser LLC is wishing you Happy, Healthy and Prosperious 2014! Let all your ideas to develop into innovative products and services to create more Joy on our planet Earth and gain yet more understanding about our World. We continue to develop and test our equipment for different environmental applications in collaboration with leading research organizations worldwide. This year we would like to congratulate Department of Soil Physics and Reclamation in Moscow State University (M.V. Lomonosov), Faculty of Soil Science with 70th Anneversary:
Also, this year we added two innovative geophysical devices to our offerings in collaboration with OOO Electrometry and Gelion holding (Russia):
Electromagnetic multi-frequency profiler AEMP-14
Electrical tomography SibER-48 equipment
Do not hesitate to ask us about applications of geophysics in archaeology, agriculture, and environmental sciences. We are here to "Enlighten Your Research".
Locations
- Блог пользователя landviser
- Войдите или зарегистрируйтесь, чтобы получить возможность отправлять комментарии
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- следующая ›
- последняя »
