OpenStreetMap is frequently updated but depends on volunteers. Commercial maps are updated with every release. Locus Map's aerial maps, available with the Premium Gold tier, are detailed enough, but they are updated once in a while. But what can tell you the exact state of land cover, vegetation, or snow every day? Satellite imagery, of course!

Free and open satellite imagery is collected and shared through the Landsat and Copernicus programs. Each program has its own online viewer, which can be accessed via a web browser. But is it possible to visualize your location on top of the latest satellite image or create a map of the current snow conditions and display it on your hiking map? The answer is a big yes.

The key: WMS/WMTS

The key to this is the OGC (Open Geospatial Consortium) standard: This is the set of agreements that enable web map services such as WMS (Web Map Service) or WMTS (Web Map Tile Service). If you don’t know how these work, don’t worry! The main thing is that remote servers can create a map of the location you are interested in and send it directly to your device. Locus Map is compatible with WMS/WMTS services, which means it can load any service that complies with these standards.

The source: Sentinel satellites

The Copernicus Data Space Ecosystem is the new gateway to satellite imagery from the Sentinel satellites. It is not only a portal for downloading data, but also offers visualization tools, free virtual machines, and a large code base for the developers among you. For those who want to view satellite imagery on their mobile phones, the good news is that there is also an OGC API. API stands for Application Programming Interface – essentially a piece of code that allows your phone to communicate with the servers.

A typical case you might want to load onto your map is the latest Sentinel-2 true-color image. It has a 10-meter resolution and is updated at least every five days—if cloud cover allows. The data is free, but you will need to manage your user quota through your credentials, so let us walk you through the steps.

How to get the data into the app?

In short, you will need to create a configuration for your WMS and then load it into Locus Map.

First, register at dataspace.copernicus.eu. You can view the privacy policy: No data is used for profiling, you don’t have to provide any personal information, this registration is just to ensure that no one accidentally consumes a disproportional amount of data.

Open the Sentinel Hub Dashboard (Analyse data/Sentinel Hub), where you will find a configuration utility. If you click on „Add New Configuration” and select „Create configuration based on Simple Sentinel-2 L2A template”, you will get a new configuration with 10 different layers that you will be able to choose from within Locus. 

A few settings: Click on the arrow next to the layer name on the right to access its settings. First of all, you can delete some of the layers if you don’t want to keep all of the options (you will be able to choose the layer in Locus). You can also set a time range. If you click on „relative”, you can set „From -1 month” and „to 0 Hours” from today. Also, set the „Mosaic Order” to „Least cloud coverage”. This will give you the least cloudy image of the last month – very handy if you want to know exactly what is on the ground.

On the left side under „Settings”, uncheck the „show logo” box, and under „Service endpoints” click on “ID” and scroll down to select WMS. You will see a URL with a long code at the end. Copy this code.

Open the Map Manager on Locus Map and select the WMS/WMTS tab. Click on the plus symbol in the bottom right-hand corner. Enter the long URL, add your CDSE username and password when prompted, and you should be good to go.

If you enable this WMS and select a layer (typically you would want to use true color), the latest Sentinel-2 satellite image of the area you are displaying on your map will be available.

Once you have this image, you can set some additional details. Open Copernicus Browser at browser.dataspace.copernicus.eu and take a look at the available datasets and visualizations. There is an in-app tutorial (a short tutorial can be found here if the controls are not self-explanatory). You can select the available layers from the list, or you can also explore the extensive collection of additional visualization tools in the Custom Script Repository, including predefined scripts for applications such as wildfire or flood mapping- or even create your own!

Once you have found the dataset of your choice, open the Sentinel Hub configuration utility. Here you can create a new configuration with the exact settings you used in the Browser, to send the visualization to Locus Map on your phone. You can find detailed instructions on custom scripts and configurations in this blog post. Select the template for the dataset of your choice (typically „Simple Sentinel-2 L2A template”) and create a new configuration. Here you can again create a new layer and copy the visualization script of your choice into the „Data Processing” part of the new layer definition.

You can then create a WMS from this layer in a similar way and open it with Locus Map.

And don't forget to clear the WMS layer cache each time you need fresh data from the server:

As you will see, the possibilities of satellite imagery are almost limitless, and having it directly in your mapping application creates a whole new level of awareness of your surroundings. Whether it’s finding the right panoramic point, or supporting your work as a first responder, we hope you will find satellite imagery on your phone both useful and inspiring. The future is now!

András Zlinszky is a science communication expert and environmental activist. He works at Sinergise and is responsible for the promotion of the Copernicus Data Space Ecosystem. Outdoors, he likes kayaking, mountain biking, hiking, and parkour. His favorite trip-planning trick is to travel light and bivouac in caves.
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Článek How to load free satellite imagery in Locus Map se nejdříve objevil na Locus Map - mobile outdoor navigation app.

A year has just passed since we introduced our new project - Locus Map 4. And since we are not really into those classic anniversary parties, we want to celebrate this event with you in a somewhat unconventional way - by introducing some major new features:

• Import and satellite maps on the web
• New options for purchasing Premium features
• Locus Map Pro is now Locus Map 3 Classic

News on the web

Import routes and points

Finally, for many of you, there’s a crucial piece of functionality. It took a long time, as it was not easy for us - you are used to importing not only routes, but also points or combinations of them from the mobile app. All this also in multiple numbers. All of this is now possible in the web planner as well.

You can start the import using the button, or by simply dragging the GPX file directly onto the map (you need to be logged in for this to work):

The web application then gives you a choice of what you want to save from the imported file to the library:

Then click "Save", select the folders for routes and points separately and you're done (but you can only save with the Premium Gold package activated).

LoMap or aerial view?

We recently introduced global satellite maps to Locus Map on mobile. Now we've done the same on the web. You can now choose between cycling/touring LoMap or aerial/satellite imagery to plan your routes or view your trips.

Dynamic LoPoints are of course displayed over both. This takes the comfort of trip planning one step further again.

The maps show data from Here and Maxar and can be zoomed down to level 18.

In addition to subscriptions - the one-time payments

You all probably understand that all the gadgets and new services we have been throwing at you for a year now cost a lot of money.

Still, we know that paying for premium features as a subscription is not popular with some of you.

That's why we have prepared one-time payments for you. You pay for a specific period of time, the Premium Services are activated, the period expires, and the app returns to the basic state. No automatic payment renewal, you are in full control:

Premium for 3 months

If you're a fan of summer-only outdoor activities, this plan is for you. On this plan, you'll only pay for Premium features for the peak outdoor season of the year, when you're guaranteed the best weather and longest daylight hours. So ideal for hiking and biking.

Of course, you can use the same plan in winter, when the cross-country skiing and skialp season is in full swing. Anyway, it's up to you, you can start the 3-month Premium at any time.

Premium for 1 year

This is the plan of choice for die-hard outdoorsmen who want to be in full control of the payments for their hobby. Just pay once, you're set for a year and you don't have to deal with automatic renewal.

Try Premium for 14 days for free

So you don't buy into the hype, you can try the premium app for FREE. You have a full 14 days to do so, so if you time it right, you'll be able to make it through two weekends. The trial is included with annual Silver and Gold subscriptions. If you cancel your subscription before the end of the trial period, it won't cost you a cent.

Can I switch from a subscription to a one-time purchase and vice versa?

Yes, we have several transition scenarios, all of which have one thing in common - they are always fair to you.

For example, if you have an annual Silver subscription and want a three-month one-time Gold for the summer, your subscription will not be deactivated, but instead extended by the three months you use Gold. So you won't lose a day of the subscribed features.

Or, if you are switching from an unfinished three-month one-time Silver to an annual Gold subscription, the remaining unused funds will be used to extend the annual period pro-rata.

All options for one-off purchases, subscriptions, and transitions between them can be found directly in the app under the "Go Premium" menu.

Locus Map Pro changes to Locus Map 3 Classic

Throughout the year we’ve been explaining to our users that Locus Map 4 and Locus Map Pro are developed and maintained in two different projects. However, we are aware that the name of the older application containing the word "Pro" may evoke the opposite impression, especially for new users, that Locus Map 4 is an older or lower-end application.

That's why we decided to rename the original Locus Map Pro application to Locus Map 3 Classic.

The number 3 in the title refers to the number series of the original "Pro" application, which we are now releasing in version 3.59. The word "Classic" conveys the feeling of "good old", reliable, and time-tested software.

Some of our users are rejecting the novelty of the 4th series of the app. For example, they are used to the original user interface. Locus Map 3 Classic is primarily for them, and we will continue to maintain and update it so that it works seamlessly on the latest versions of the Android operating system.

For those who want to take advantage of our latest gadgets, there's Locus Map 4, which in Premium Silver includes the same features as Locus Map 3 Classic, plus a lot more. 

Článek Check out the presents for the first anniversary of Locus Map 4! se nejdříve objevil na Locus Map - mobile outdoor navigation app.

by Andreas Woithon, Matsch&Piste

There are a few demanding terrains for navigation on this planet. Deserts belong to them. Deserts are regions of our planet with poor or no vegetation. They have a few things in common: the lack of clearly identifiable marks we can use for orientation. At least for people who don't need to navigate and move around there daily, for us, the untrained. In the worst cases, the desert changes over time. All that doesn't help to make navigation easier.

[caption id="attachment_12127" align="aligncenter" width="800"] Where to go?[/caption]

However, people cross these life-threatening places on Earth for centuries. So as not to fail, one needs some special knowledge and skills. Regarding navigation, these are the knowledge of the place you are in and you want to go, where the tracks (earth roads), the oases and water wells are and the skill to orientate oneself among less obvious structures. Pros with pro-equipment are better suited than most of us. The natives, who are used to move in deserts often use invariable natural features, like special dunes or mesas that we don't recognize.

As most of us stay in deserts for a too short time, we can't train these skills nor buy pro-equipment. We need different tools to aid us. Thanks to satellite navigation and digital global maps it has become easy for everyone to find our way through the desert. However, that doesn't mean that we can move around actually as easily as we can navigate with these modern systems. But we know where we are and in which direction to go, after all. But only as long as the satellite systems and our gear works. That is important to respect, as this is not self-evident.

[caption id="attachment_12122" align="aligncenter" width="800"] Even from higher points structures for orientation are not easy to recognize.[/caption]

It's a fact that there always have been ways to navigate in deserts. Since at least the Second World War it became important for a larger group of people without love or interest for deserts, to find their way through. The classic way to achieve this was a compass and a map. But the compass meant limitations and difficulties the user needed to know about and to handle that correctly. Because of the missing orientation marks you could keep direction to you have to control your direction otherwise. The need to controlling your direction with a magnetic compass meant to stop the vehicle, leave all metal behind, move away from it far enough, coming back, continue to drive every few meters. That was impractical and a waste of time. In flat deserts, you could do that for quite some distance, but in the middle of dunes, where you can see only a few hundred meters ahead and you change your direction very often, that was even harder, if not impossible.

A guy from Switzerland, Mr. Bagnold, invented the sun compass for the British Army. This was used in conjunction with tables for times and places to allow navigation while driving. But only by day. During the night it was useless. What a relieve satellite navigation systems are!

Satellite navigation and you're done?

Is it enough to have your GNSS (Global Navigation Satellite Systems) equipment and a few maps with you while crossing a desert? Yes and no. The App should be capable of a few functions which really support you and it should provide selected maps. However, regardless of your equipment, finding the best path through in the desert will only work by looking and checking when you are driving. Depending on the surface and its condition you need a lot of experience to complete a noteworthy distance. Without that experience, your daily legs will be short and your effort huge. Without the skills to "read the sand" you'll get stuck often, resulting in digging and recovery operations.

[caption id="attachment_12130" align="aligncenter" width="800"]Not understanding the surface means you often have to dig. Or you just had bad luck.[/caption]

Most of the time you can't follow the line-of-sight. That only works in large, obstacle-free areas, like the Jebel National Park in Tunisia. And even there you have to be aware of nearly invisible brims of a wady or other harmful obstacles. You don't want to turn your car into a crashing plane or to get stuck in a chott. A chott is a large sediment plain, with only a thin crust. Below that is deep, wet, salty sand without any capability to carry load. If you get stuck there you're in trouble. Fech-Fech is another surface you better not try to drive on. This is very, very fine sand (like powdered pepper), also with no capability to carry load and which heavily dusts. A car will sink down to its chassis very quickly.

[caption id="attachment_12124" align="aligncenter" width="800"]Even in flat areas without dunes there are no remarkable structures.[/caption]

[caption id="attachment_12129" align="aligncenter" width="800"]Overlooking a Ghazi, no real points for orientation.[/caption]

Maps

Let's return to digital navigation and what an App needs to provide if you want to cross a desert. The first thing which comes to my mind is maps. In general, you need two kinds of maps. A good topographical vector map, which shows all streets, tracks, oases, villages and all that stuff. Second, an up-to-date satellite map.

I prefer to use the OpenAndroMaps topographical vector maps, as their themes are detailed and very granular. Height data for these maps can be downloaded from the Locus Map store or at http://www.viewfinderpanoramas.org/Coverage%20map%20viewfinderpanoramas_org3.htm. You need to select the appropriate section, download it, unzip the ZIP-file and copy the .HGT files to "/Locus/data/srtm".

For satellite images, I like the ESRI hybrid maps, which you can use with Locus Map. Who used the already gone Locus Map Tweak in the past should have listed this map server in the Online section of the map manager.

It should be noticed here that maps that are based on OpenStreetMap (OSM) not necessarily show all existing tracks in deserts. Some can only be found on old military maps or maps from professional map providers. They usually have access to other map and geographical sources that don't rely on contributions from a community (like OSM). That's why paper maps, like the Michelin 953 North Africa or digitized paper maps like the ones from mapstor.com, are a meaningful addition. Besides an unfolded paper map can be studied and discussed much better in the sunlight with a group of people, than doing this around a 10" display.

The topographical maps show me the details, tracks and paths and the remarkable waypoints, POI's, etc. The satellite maps are fine for locating and estimating dunes. At least for me, the presentation of dunes on OSM maps is something I don't really get used to.

[caption id="attachment_12131" align="aligncenter" width="800"]
Area of Lac Ereched Houidhat, Tunisia, as a satellite and topographical representation[/caption]

[caption id="attachment_12133" align="aligncenter" width="800"]Area East of Afassa, Niger, as a satellite and topographical representation[/caption]

That is one of the important functions an App should be capable of: provide several map types and maps from different sources, vector, and image-based.

Offroad navigation functions useful in deserts

Regarding the navigation itself, many people are satisfied with seeing where they actually are. Ok, that is nothing special, any navigation App will do that. However, I prefer to have a supporting visual reference to the destination which can be captured by one glimpse. Especially if you're sitting alone in your car as the driver. This is a great help because most of the time your eyes should be focused on the way in front of your car than on your navigation device. At this point, many Apps fall behind. Locus Map provides this by offering two functions: "Guide on" and the "Route planner". Both provide a very good visual reference while you are concentrating on driving.

But why are these functions so helpful? There are two main reasons. First, the visualized line of sight between you and your destination guides you, even if the destination is not visible on the map because you have to travel over a longer distance and the landscape lacks visual reference structures or landmarks you could use for guidance. Second, you have no visual contact with your destination most of the time while driving in dune fields.

[caption id="attachment_12125" align="aligncenter" width="800"] Locus Map Pro in action.[/caption]

Offroad navigation with Locus Map function "Guidance"

While you're driving over plain tracks you could mark the destination and start the guidance (Guide on). You'll receive information about the line-of-sight distance and direction immediately. While you're driving you can roughly estimate if you're still driving in the right direction, even if the target is not visible on the map. That's good for routes that do not have many turnoffs, junctions, etc. and where the route is mainly straight (but doesn't have to).

[caption id="attachment_12137" align="aligncenter" width="800"]"Guide on" while driving a track (the track is below the guidance line).[/caption]

Offroad navigation with the Locus Map Route Planner

If your way has many junctions or runs over longer distances or which is far from being straight, you can use the Locus Map route planner and the "Guide on"-function while following your planned route. Draw your route into the map. You can decide on how detailed you plan it and how close you stick to the actual tracks visible on the map. You should set a route waypoint at least where you have to decide about where to drive (like junctions and turnoffs). By doing that you receive detailed information about your route right while you're planning it. While driving, you can easily follow your planned route without the need for continually zooming in and out or moving the map around. That lets you concentrate on your way and driving, especially when it becomes somewhat harder or you have to focus on not losing the momentum. Despite the increased effort, the route planner is very helpful. At that point, only a very small number of Apps are left.

Within dune fields, this function is even more helpful. The condition of the sand dictates where you can actually go in your car. Using the "Guide on" and Route planner" allows you to stick to the route or the guidance line, while you meander around, always looking for the best way to cross a dome or to drive around a gap. Or while you're following the skid marks of some local experienced guys, who know how to read the sand, while at the same time you try to keep the general direction.

The route planner and the guidance function become even more important if you're driving without native experts. The problem is the lack of landmarks you can easily recognize, like a mesa or very high dune. Even if you find one, just by changing the position with a different view, that landmark can make itself unrecognizable to you, as its look can change very much. If you're standing on a summit looking at a high dune in the far, you can very easily lose that mark while driving around in the dune fields. You constantly dive into gaps and holes, cross summits, dig a car out, etc. and when you're back on the top after a few hundred or thousand meters it seems to be gone. That's where the visual guidance line of Locus Map is a great help. It's still pointing to your destination.

[caption id="attachment_12126" align="aligncenter" width="800"] A mesa can be a landmark.[/caption]

The same applies if you see high mountains or a mountain chain in the far, something you really can't miss. Again, the guidance line is a perfect help, while moving through dune fields. You can't keep the mountains in your eye all the time while driving because you're below the summits of the dunes you're in and you change your direction very often while following possible ways. And when you get a sight to the mountain again, you suddenly realize that you have moved away from it instead of towards it. That wastes fuel, water and time. The Locus Map guidance always shows you the right general direction, so you can easily detect if your general direction leads you to that mountain.

[caption id="attachment_12128" align="aligncenter" width="800"] In between the dunes you can't see far.[/caption]

If you want to drive around dune fields, the planner is your friend, again. Using it together with the satellite maps you can find flat areas to circumvent higher dunes. Draw your route and simply follow it as general guidance. If you have to drive around smaller obstacles, the guidance line to the next waypoint will always guide you back to your route. If it takes you too far from the next waypoint, just skip it and head to the next one.

[caption id="attachment_12135" align="aligncenter" width="800"] Choosing more leveled areas for your way.[/caption]

After planning the route you can switch the map to a higher zoom level to get more details and follow your route. Where and how to cross these fields exactly is always a matter of checking out the actual conditions while driving.

[caption id="attachment_12136" align="aligncenter" width="800"] A more detailed view of your way.[/caption]

Scared by handling the App or the technical stuff? Matsch&Piste guides you!

Most offroad navigation Apps don't provide all these options and functions discussed here. However, some users are satisfied with that, as they don't want to cope with all that stuff. Besides other things I appreciate Locus Map because of the possibility to get rid of all the things you don't need and to focus on the few important functions I need and which are easy to learn. But some people either don't have the time or the will to dive deeper into these things. Or they are scared of technology in general.

If you want to get quickly and easily your hands on Locus Map you can book our live Webinar-Sessions about offroad navigation with Locus Map Pro. If you plan to visit really far-away places, where navigation is no fun anymore but essential, our weekend workshop about classic and digital navigation is exactly suited to you. You learn how to handle maps, compass, digital navigation (with Locus Map) and how that all fits and works together. Knowing how to handle paper maps and compass is vital in really offsite places. You should acknowledge that all this comfort of digital navigation can end immediately. Just think about the accident, where your gear is destroyed or if you have to leave the vehicle behind. At our weekend workshop, you also have a practical session with your car, where you can practice what was learned before.

All webinars and trainings are in German.

Find more information about our trainings here: https://www.matsch-und-piste.de/shop

Here's a short video of our desert driving in 2017:

Článek Offroad-Navigation in Deserts with Locus Map Pro se nejdříve objevil na Locus Map - mobile outdoor navigation app.