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Storm Watch over USA with Stream Flood Status

Below you should see interactive map with active hurricane tracking over USA (Atlantic and Pacific). Also Weather Radar with current precipitation, next several days flooding outlook areas. Different color square markers indicate major river flood status with links to USGS site showing up-to-date water level and projected flooding. Purple squares - major flooding on-going. To see legend and toggle layers click on >> in top left corner.

Happy New 2017 Year!

 

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!

Happy New 2016 Year!

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 Great New Year!

Make your own four-electrode probe for soil mapping

Materials4-probe-collapsed

  • ¾” PVC pipe, one section of 10’.
  • 2 T-shaped PVC pipe connectors fitting ¾” pipe from all three ends.
  • 2 ¾” PVC cups (optional).
  • #18 AWG isolated stranded wires, red and black, 15’ each.
  • 1”x2” Velcro strip (optional).
  • 3 #6 1.5” screws for wood (optional).
  • 4-electrode probe kit (available from Landviser, LLC) including:
    • - 4 stainless steel electrodes (sharpened d= ¼” L=6” bolts)
    • - 8 stainless steel ¼” nuts for connecting electrodes with the wires
    • - 4 nylon isolated terminals for 18” AWG wire with 5/16” opening
    • - 4 banana plugs (2 black, 2 red) for connecting with LandMapper terminals

Happy New Year 2015!

Landviser wishes  all our clients, colleagues and friends happy holidays, as well as healthy and prosperous New Year!

Желаем всем нашим друзьям и коллегам веселых праздников, а также счастья, здоровья и успехов в Новом Году!

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Landviser now offers complete line of electrical geophysical equipment and software: from our exclusive simple hand-held resistivity and self-potential meters, LandMappers, to the most sophisticated 16-channel, 64-electrode automatic RES/IP tomography set, SibER-64! Also:

GPS data loggers: cost-effective rugged data loggers, inclinometers, distance scanners and cameras from F4Devices

GIS & Geophysics consulting: on-site and remote classes and support available worldwide

Customized Solutions: No project is too big or too small!

Call: +1-609-412-0555 or 888-306-LAND

Email: info@landviser.net     Web: www.landviser.net

Landviser, LLC (USA) is authorized distributor for KB Electrometry (Russia), GeoTOMO Software (Australia/Malaysia) and F4Devices (USA)

Tips and Tricks for linking data in ArcGIS

There are two basic types of joins in GIS tables and geo-data: spatial and relational (based on table IDs). Spatial join is the key concept in GIS and that is what sets all GIS technologies apart from other relational databases. Here we start with performing relational joint of list of zipcodes with names to the US zipcode shapefile.

Relational Join

To join table to shapefile based on ID (zipcode) the data type in the column you are planning to join should be the same. Let’s check on data type in Zip code shapefile. Right click on shapefile, select properties and look under Fields tab. The format of the data is Text and size is 5 digits.

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Converting multiple KML files into geodatabase for GIS project in ArcMap Desktop

Google Earth is wide-spread free GIS application which allows users to draw their own point, lines and polygons. Very often users create many separate files in KML or KMZ format and upon moving to the next step in GIS analysis are trying to recreate the same geographies in ArcGIS editing software. The fastest way to bring all those custom data into GIS project is described here. Assuming that you have Google Earth and ArcGIS Desktop 10.2 installed, bring all the KML/KMZ files into Google Earth through File\Open (you can select multiple files from the same folder):

2D Dipole-Dipole Electrical Tomography with LandMapper

Manual 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:

  1. 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).
  2. 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

Location

0° 34' 51.8304" N, 71° 51' 2.1096" W
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