Skip to main content

A faster more powerful version of Oasis montaj awaits in our latest release 9.10.

We have listened to your feedback, improved performance and optimized workflows whilst streamlining extensions and adding more flexibility and interoperability.

Experience a much more comprehensive, intuitive, and easier to use Projections & Coordinate System, supporting more standard projects and powerful new search functionality.

We’ve renamed and revamped the IP and Resistivity Extension to Induced Polarization & Resistivity – expect better visualization, better QC and better processing workflows.

Focused on increasing your functionality and usability, the UX-Analyze extension also has a new intuitive menus.


24 min

See more on demand videos


Find out more about Oasis montaj

Learn more

Video Transcript

(calming music)

<v Laura>Hello, my name is Laura Quigley</v>

and I’m a technical analyst here at Seequent.

I’m going to share with you some of the new features

in the June, 2021 release of Oasis montaj version 9.10.

This release is a scheduled software upgrade

available to all maintain customers

and can be downloaded from

First, I will cover a few items

so that you know how to participate in today’s webinar.

During the webinar, you will have the option

to submit text questions by typing your questions

in the chat pane of the GoToWebinar panel.

You may send your questions at any time

during the presentation

and we will respond to those questions via email

within the next 24 to 48 hours.

A faster, more powerful version of Oasis montaj

is now available in our latest release.

We have listened to your feedback,

improved performance and optimized workflows

while streamlining extensions

and adding more flexibility and interoperability.

An overview of some of the features

that we’ll be discussing include,

how the user will experience a much more comprehensive,

intuitive, and easier to use projection

and coordinate systems.

We’ve also renamed and revamped the IP extension

to IP and Resistivity.

We’ve made some customer usability requests,

such as better handling of lost data files

and the ability to import KML or KMZ vector layers

into 3D views.

You can now upload folders to the Seequent Data Room.

We’ve made frequency domain filtering

usability improvements.

We have added two new convolution filters

and have made updates to our Airborne QC extension.

There’s also a new intuitive menu structure

for UX-Analyze workflow.

And in VOXI, we have a new waveform option

for time domain EM modeling

and a new regularization method

for DCIP, time domain EM

and frequency domain EM models in VOXI.

And finally, we have a new DAP URL.

Coordinate systems and projections.

We’ve made significant improvements and updates

to coordinate systems and projections.

The menu has all the parameters

of the previous coordinate system dialogue,

plus a few additions.

So locating your coordinate system for your project

has now been made faster and more intuitive

through our new powerful multi-string search functionality.

You can now search your coordinate system by country name,

latitude or longitude

or standard coordinate system name.

You can also search by unique EPSG or IOPG code

or an Esri ID.

And by using these unique IDs,

there is no confusion about which version

of the datum you are using.

So we show the coordinate system

in a tree that is multilevel.

The first level will either be geographic coordinates system

or projected system.

The second level is the country,

as you often know what country you are working in.

The third level, if broken down further,

will be your latitude or longitude.

And the fourth level will show the coordinate system itself.

You can also search by unique EPSG number, as I mentioned,

so for example, 4326 is WGS 84 geographic coordinate system.

We’ve also included several new coordinate projections

applicable to Antarctica, Scandinavia,

Papa New Guinea,

Borneo, Brazil and more.

So I’m going to click next to create some new channels.

I’m in Finland zone three,

so I can begin to type this into the multi-string search.

I don’t see anything that matches what I’ve typed in

in my standard list,

but I do see a note saying

the Esri coordinate system list does contain a search

that matched what I typed in.

We can also add coordinate systems to a favorites tab,

making it easy to access the coordinate systems

you use often.

This is also extremely useful

if you have custom coordinate systems.

You can now push the current projected coordinate systems

to multiple files within your projects,

such as grids or databases,

complimentary to the copy from option.

Further, we have updated the modify dialogue.

You can now customize a local datum transform.

All these changes and updates were implemented

to help you navigate the coordinate system menu

in Oasis montaj,

allowing you to save time looking for your desired

and favorite coordinate systems.

IP and resistivity.

Next, I’m going to talk about our IP and Resistivity extension.

We have renamed this extension from IP

to IP and Resistivity

to better describe the functionality

and the naming is more in line with our VOXI terminology.

We’ve also improved 2D plan map visualization.

You can now access contributing electrodes quickly

via an icon on the title bar.

You can clearly visualize the contributing electrodes

for each IP measurement.

When you are done, use the adjacent button

on the database toolbar

to end plotting contributing electrode mode.

We’ve also updated 3D array plotting.

We have done two things.

First, you can now plot symbols scaled by amplitude

using the proportional radio button.

And this will minimize the size of low values,

minimizing clutter in your 3D view.

Secondly, you can now group layers by line numbers

or electrode types.

That’s all transmitters together and all receivers together.

This helps expanding and contracting the groups

in the 3D view,

so you can expand just the types of data you want to look at.

The data is grouped here by type

and I’m able to expand just the group I want to look at.

Also in this update,

you can edit multiple groups at the same time.

You can simply select the group of data

you would like to edit

and then change the color or the symbol size.

For example, if I want to change all the transmitter twos

to a different color and or size.

We’ve also added new quality control processing tools.

Identify noisy arrays.

We can now identify and filter noisy IP channels.

As you can see, some channels here are noisy

and should be flagged.

This tool will fit a polynomial to the IP decay.

We can specify the order of the polynomial,

usually an order of three will cover the decay here well.

Other parameters, including percent fit error,

so what is the acceptable range

and values outside that will be flagged?

Another perimeter mask QC IP threshold.

So we initially mask the flagged channel IP mask.

If this number of elements set in this parameter here

are flagged in the IP mask,

then we turn off the QCIP channel altogether

and then finally, we can save the fitted array

and the error to two new channels.

So once run, an array viewer window pops up

where I can see the original and fitted arrays.

You can move through the data,

moving through the fiducial or sample number,

and you can move down the array

with the values being displayed along the bottom.

Another QC tool we have updated,

is the flag or mask data by range.

So that’s under QC by data range.

Initially in this tool, we allowed the user

to specify only one channel to flag.

However, there have been requests to mask

by more than one channel.

Maybe you have a flag channel you want to use

in conjunction with the VP channel, for example.

You can also pick and or a or condition.

The data statistics are shown along the bottom.

What is the mean and the range of the data?

You can flag inside or outside a data range

or flag by absolute value.

Another tool we have added,

is QC by data distribution.

So I’ll open another database to demonstrate this.

This tool will show you all the receiver values

related to the same transmitter.

The top list gives a list of transmitter coordinates.

Then I can pick a transmitter from the list

and it will link to the map,

or I can go to my map and pick a transmitter here.

Once I pick a transmitter, it shows me all the data values

and the receiver pairs in the table here.

What we will normally expect

is to see higher values closer to the transmitter

and then drop off as you move further away.

We can look at these values in the table

and decide which ones to keep and turn off.

In the more or less section, we can change the color table

and the size of the symbols.

Another new processing tool we have added,

is recalculate derived data.

So this was previously called recalculate

and it would update a group of channels

that were hardwired or set into the tool.

Now, you can provide the names of the channels

instead of using the ones that were hardwired.

We also allow the user to leave certain fields blank

that will not be recalculated.

And finally, we have now added the option

to calculate the chargeability.

Customer usability requests.

Work faster with usability enhancements

in Oasis montaj and Target.

In this newest release, you can now manage data in 3D views

via folders.

You have the ability to create, rename

and delete folders and sub folders.

This allows you to turn data off and on quickly.

You simply need to drag and drop your content into a folder,

allowing you to stay organized.

Seequent Central.

With this release, we have added the ability

to upload to folders within the Seequent Data Room.

You can now create and select folders

within the Seequent Data Room in which to upload your files,

making organizing and sharing much smoother.

In the project explorer,

we have better handling of lost files and broken data links.

Now, whenever a file is missing,

it will be grayed out and a warning sign next to it,

meaning Oasis montaj cannot locate those files.

You then have the ability to right button click on the file

and locate it by choosing find.

You will also notice the channel grid

and voxel math tools are significantly faster.

Finally, we have added the ability to import KMZ

and KML vector layers into the 3D viewer.

Frequency domain filtering updates.

We have made some improvements to our geophysics

and 2D FFT extensions.

We had some customer feedback on the 1D

and 2D FFT filtering in our 9.9 release

and we acted on that feedback.

So firstly, in 2D filtering,

you can now display the filled grid

without opening the interactive filter definition.

Here we have added a display button

that allows you to display the filled grid

before continuing with the filtering.

This creates an _PRP grid

and you can adjust the various parameters,

such as trend, expansion and fill methods and display

before running your filter.

Next, in match filtering,

we now distinguish between the data

either being magnetic or gravity data.

Magnetic values change is one over R queued,

whereas gravity changes is one over R squared.

So the way the slope is used

to calculate the equivalent depth is different.

So you simply choose the type of data you are working with

and all the math happens behind the scenes.

We’ve also made the size of the window

used to calculate the slope, much bigger,

so that it’s smoother.

This is because the spectrum is so noisy.

Now we can use up to half the length of the spectrum itself.

And you can see when I go to define the slope

on the spectrum graph, it moves much smoother.

We can also change the width of the spectrum for each depth.

Finally, in the 1D FFT tool, we made a small change

as to how we display the output spectrum.

We used to plot the input and output spectrum

on the same scale,

however, they can be very different values,

for example, derivatives.

So now we plot them separately, such that each profile

is centered individually on their own midpoint values.

New convolution filters.

Next, I’m going to talk about two new convolution filters

that we have added to version 9.10,

the vertical continuation convolution filter

and the Laplacian of Gaussian

nine by nine convolution filter.

Both of these filters can be found under grid

and image filters menu.

The continuation filter can be used to smooth

or sharpen your data,

while the Laplacian can be used to enhance edges.

The first filter I will speak about

is the Laplacian of Gaussian,

a nine by nine convolution filter,

which yields the second vertical derivative of the data.

So I’ve run this filter.

So I will just close this dialog

and show you the results on my map.

So here’s the non-filtered magnetic grid

and the Laplacian grid.

The second new convolution filter

is the vertical continuation convolution filter.

With this filter, we can apply upward

or downward continuation, with the limitation being

that you cannot apply the continuation

by more than five grid cells

and you will get an error if you try to do so.

Although this is a limitation,

you will see that the results can be much cleaner

than similar FFT method, which is prone to artifacts.

So first I have the non-filtered magnetic data

and a grid that was upward continued by 500 meters,

and this can be run to reduce

high-frequency short wavelength noise, for example.

We can also sharpen subtle features

by applying a downward continuation.

So here is the vertical continuation convolution filter grid

that was downward continued 250 meters.

And just to compare,

I’ve run a similar downward continuation in the FFT filter

and I’ll just zoom in to show you the difference.

Airborne QC.

Work faster and improve the quality

of your Airborne geophysics data

by performing a velocity QC test,

either individually or by batch.

This tool flags segments of the survey track

where velocities are outside the project specifications.

In the tool, you’ll specify a nominal velocity

and the allowable range.

So this produces a flag channel,

which is then plotted on your map.

Also, we have made another change to plot QC results,

where you can customize the appearance of a flag channel.

If you plot a lot of these QC flags,

you may find that they are too close to one another

or over printing one another, for example,

and you may want to customize the plotting of the QC flags.

We can now define the offset, color and line thickness

of the QC flag you want to edit.

UX-Analyze new menu structure.

So next, I’m going to jump into PowerPoint

to talk about the new UX-Analyze menu structure.

In Oasis montaj version 9.10,

we have reorganized some of the menus

in the UX-Analyze workflow.

We previously had three menus, dynamic data,

static data and expert user.

We’ve now broken the tools out into four menus,

AGC survey prep, dynamic data,

static data and expert user,

with AGC in front of the names,

standing for advanced geophysical classification.

So the new menu survey prep.

So this include some of the tools

that were previously in the dynamic and static workflows.

So like I said, we’ve moved

some of these survey preparation tools

that were previously in the static and dynamic menus

into a survey prep menu, allowing new users

or those who do not do AGC processing regularly

to easily see in these new menus

what tools are necessary to run respective workflows

without unnecessary clutter.

So you’ll see here, I have the old menu on the left

and the new menu on the right

for both dynamic and static

with the new menus being highlighted in a yellow rectangle.

So the way we restructured this,

is to include tools that are essential

to complete the workflow on the main menus.

So for static data, that would be import static sensor data,

level sensor data,

and classify and rank.

For the dynamic workflow,

you need to import your static or your dynamic sensor data,

you need to do a background removal

and pick target locations.

We have placed invert for sources

and filter dynamic sources

in the sub menu under determine flag locations.

You’ll also notice the drift and background removal

has a sub menu attached to it,

so that could either be to median

or you have background locations.

Some other notable cleanups include grouping several tools

into a new QC menu

and several tools into a manage targets menu.

Also in the static menu, we grouped several tools

into sensor tests and QC tools.

So what does this mean?

It means you have the same reliable results

from our UX-Analyze workflow

with a new, more intuitive menu structure.

VOXI improvements.

The first thing we have done,

is add the ability to define step off or ramp off waveforms.

Useful for ground surveys,

you now have a ramp off or step off function for ease of use

when defining the waveform for modeling or inversion.

So this is found under settings, time domain EM waveform

and time windows.

When you click on specify,

you can see the different options.

Where we have database, as before,

we have also added ramp off and step off.

We’ve removed the waveform option from the add data wizard,

which you can see is no longer here,

and put it into a separate dialogue.

This dialogue has also launched

when first adding VOXI time domain EM data.

Next, we have a new regularization method

for DCIP, frequency and time domain EM models.

It is called fit with starting coefficient.

This option makes it possible for you to stop

and restart a previous inversion from its termination state.


The public DAP server has changed,

the GSL public DEP server.

Here, if you want to access the URLs,

you click on manage server.

So it has been updated for version 9.10

and the new URL is

The old URL is

We will have both servers running for six months.

After six months, we will shut down

the and redirect everyone


And for those who have still not migrated

to the new version of Oasis montaj,

you will manually have to change the URL.

So you can just click on add here to do that.

So that concludes the webinar

for the new release highlights in Oasis montaj version 9.10.

Thank you everyone for listening and attending.

My email address is here, so feel free to email me.

Please take a minute to respond to the one minute survey

that will prompt on your screen at the end of this webinar.

You’ll be able to include any feedback

and additional questions there.

We really appreciate it.

(calming music)