WEBINAR: Exploring Satellite Imagery and Extracting Analysis Using LANDVIEWER


Hello everyone. I hope anyone can hear me. So welcome to the first LandViewer webinar
brought to you by EOS team. I’m Olga Denisenko, a content manager at EOS
and I will be the moderator of today’s session. So, we’re going to have two speakers today. Our business development managers Yvan Khitsenko
and Nickita Chernega are going to provide you an in-depth introduction to LandViewer. From their demos, you will find out about
free medium resolution and commercial high-resolution imagery that is available in LandViewer and
also you will learn about the functionalities of this cloud-based tool that will help you
derive useful insights from Earth observation data. Also, at the end there will be a Q&A section
during which our speakers will try to answer as many questions as possible. So, please, use the questions’ box, that you
can see in your ability webinar menu to send your questions during the session. Also we’ll be running a few quick polls and
we highly encourage you to participate. Your opinion would be of great help to us. I would also like to mention that this webinars
are being recorded, so please keep an eye on your mailboxes. We will send you the link shortly after. So, I guess, everyone has joined and I think
we’re ready for our first poll. Please, take a look at your screens. The poll will be soon to you. So what is your main software for satellite
imagery analysis? LandViewer, ArcGis, Envi, PCI Geomatica, others. So please, take a few seconds to think and
give your answers. I can see we’re still receiving your answers. Ok, I think everyone has voted. Let’s check the results. So, as you can see the majority is using some
other software, that we did not mention, but also a third of you uses LandViewer and ArcGis,
which is good. And, hopefully, after this webinar there will
be more people using LandViewer as the main software. So, thank you very much. And I think it’s time for our first speaker
to present his demo. Ivan, I hope you’re ready to start your presentation. Yes, Olga, I’m ready. Hi everyone. Thank you for coming to this call. I will share my screen right now with you. As you can see… is everybody seeing my screen? Great. I can see that everyone is seeing it. So, as you can see right here, this is the
main page of LandViewer. It basically consists out of two parts – the
left side and the right side. On the right side you will be doing most of
your work, and on those left side you will have additional tools that will support your
main LandViewer use. When start working with LandViewer, depending
on your needs, you have to start working with an area of interest or shortly an AOI. When working with an area of interest, if
we’re talking about, for example agricultural use or forestry, you need to specifically
go to the area, because most of you are our users and know that LandViewer is capable
of working not only with big areas but also working on a low, on a really close up range. Before working, start looking for images. What I recommend and what is the best user
case is to choose your area of interest. Here, on the left side, you will find three
options to draw your areas of interest – a rectangula, circle or if you need to make
multi, no straight shapes, like this field right here has, not a square or a rectangular
shape, I can go around it and if I lock it down, it will whole be covered. Also it will give me the area of that field
right here. Here, using the three dots, you can change
it, depending on the metric system used, to kilometers or miles, depending on what is
your use purpose. Also, you can easily download that, if you
need to use it in other software, from the list you saw before demo, e.g. ArcGis or other
software, you can easily download contours of this field or any area of interest in .shp,
.kml or geoson, depending on what your software is demanding. And when you choose an area of interest, this
is where the part of looking up images comes up. So, in this section right here, you’ll be
able to choose, as you will have a list of all images available to you from different
satellite sensors we have. So, if you click on the filter section you’ll
be able to, depending on your needs, find the perfect images for you. So, first of all, you can choose the source
of the image, we have passive day and night images, low resolution images, like Modis,
active sensor as Sentinel-1, also we have terrain tiles, and also you can upload images
from your Storage, we’ll talk about it later. So, when you choose an image, you also can
easily choose the date you need. And, when you don’t choose the date, the images
will be just arranged from the freshest to the oldest ones. But if you need to go to some specific area,
you can easily either find it in a manual mode or insert a year for example, if we need
to go to some specific year, and it will start looking for images in that specific time period. Also, when you click on the calendar, you
will see that some of the dates are marked blue, showing when were taken the scenes available. And you don’t have to look up for a specific
data, if you’re not sure if there were images of that time period, the blue markings will
tell you what images are available and it’ll be much easier to find a day when the images
were taken. Also, if sometimes images are cloud covered,
this is something, you know, will happen, some images will be cloud covered, some – very
clear. And some will be a hundred percent cloud covered,
but you can easily regulate that by just moving the slider, now, and it will pick the images
for you, which have, in this case, 9 percent and lower cloud cover. In this section, we have all sensors, available
in LandViewer. You can easily pick all sensors at once. It is done by default. Or you can pick a specific sensor you’re looking
for. A lot of our users usually use Sentinel-2
and Landsat-8 satellites, as they have the best resolution available in LandViewer. And there is no need, you know, to unclip
each sensor you don’t need, you just pick one specific satellite and it’ll be only the
images from that sensor available. Also, when you’re working with an area of
interest, when you choose one, it will always only show you the images, that are covering
your area of interest. It will not give you, you know, random any
images, just the ones, that cover your area. So, when you choose one, you don’t have to
worry about if the image covers this area – field, forest, you know, buildings, roads,
we have taken care of that. Other feature, a very useful feature is subscriptions
to new images on your area of interest. So, if you can see the small bell right here,
it allows you to subscribe to new scenes. So, what this means is that when new images
are available for your area of interest, you will receive a notification by email that
there is a new image, covering your area of interest. So it’s a very useful and easy way to, you
know, be updated by new images. You don’t have to go to LandViewer, on a daily
basis, checking if there are new images, you can easily just, you know, subscribe to new
scenes and we will automatically send you out emails, saying that the new images are
arrived. Also, we’re right now introducing a new system,
where, if you don’t put in an area of interest by any causes, but you actively go into a
specific area, you know, on a regular basis, we will send you automatic emails on telling
you we know, that you sometimes visit this area, or not so often, or often and you’ll
see that there is a new image available for that area. Please, take a look. Right now it’s being worked on, we’re trying
to make it more and more precise. So, it’s another way to receive, you know,
fast the updates and new images, covering your areas of interest. So, when you’re subscribing to new scenes,
it will tell you where is it located, what are the coordinates, what type of satellite
you want to use, what should be the cloud cover, and you just need to click SUBSCRIBE,
that’s it. To work with your areas of interest, you need
to click the “my areas of interest” button, here you’ll find a list of my areas of interest. As you can see, there are just a lot of test
fields. When working with areas of interest, you can
easily rename them, depending on what needs you have,I’ve moved myself right now to this
specific area of interest – webinar test one – and you can input different types of information
here. As in my case, if you’re a consultant or you
can input the client’s name, you are working with. And you can easily store hundreds of these
areas of interest here, you don’t have to manually go from map to map, looking for,
you know, the fields you were looking at, you know one week before. No, they are just saved in the system, so
that you don’t need to do it manually, it’s all saved in automatically. Also, you can easily download, as I mentioned
before, you can download, if you, you know, have a list of areas of interest uploaded
and you can easily download from this list too, or you can remove that. In the my subscription section, you will find
all your subscriptions, as the ones I did a few minutes ago, it will be in this list
then. If you want to stop receiving emails, you
just need to click the trash can, and they will be removed, and you won’t receive any
emails, regarding this area of interest. When you found the image that suits you well,
this is where, you know, the second most useful part of LandViewer comes in is our band sets
and indexes. So, in the previous few weeks we have added
to the indexes (we only had, like NDVI, NDWI), we’ve added new indexes, which are, let’s
say a more modern version of NDVI for example SAVY (soil adjusted vegetation index) or a
RVI (atmospherically resistant vegetation index), which would be very useful in, for
example, Latin America, where precipitation and air humidity is very high, that very affects
the precision of the indexes interpretation. So, we added those to support our users in
Latin America and areas with high humidity.

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