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Transcript of MARS Webviewer training course 20 th - 21 th June 2013: With focus on Africa Training on Crop...
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MARS Webviewer training course
20th - 21th June 2013:
With focus on Africa
Training on Crop monitoring with remote sensing
Joint Research Centre, Ispra , 17th - 21th June 2013
Hugo de Groot, Alterra, Wageningen UR. [email protected]
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Content
Introduction to the MARSOP3 project and data
Exploring MARSOP3 data by using the webviewer
Extensive demo Hands-on training
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JRC: Joint Research CentreJRC: Joint Research Centre
IES: Institute for Environment and SustainabilityIES: Institute for Environment and Sustainability
AGRI4CASTAGRI4CAST
AGRI-ENVAGRI-ENV
FoodSecFoodSec
GeoCAPGeoCAP
MARS unit (Monitoring Agricultural ResourceS)MARS unit (Monitoring Agricultural ResourceS)
MARSOP3: (www.marsop.info)
European CommissionEuropean Commission
MARSOP3 services
MARSOP3 services
Monitoring Agricultural Resources (MARS)Operational services
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MARSOP3: list of operational servicesweather monitoring based on interpolated station data
Africarainfall estimates based on MSG and observed rainfall
pan-Europeweather and vegetation indices based on MSG-SEVIRI
pan-Europe and Horn of Africavegetation indices based on MODIS-250m sensor
pan-Europevegetation indices based on METOP-AVHRR sensor
globalvegetation indices based on NOAA-AVHRR sensor
globalvegetation indices based on SPOT-VEGETATION sensor
globalcrop specific drought monitoring
globalweather monitoring based on ECMWF deterministic forecast
pan-Europecrop yield forecast based on ECMWF ensemble models
pan-Europe and Asiacrop yield forecast based on ECMWF deterministic forecast
pan-Europecrop yield forecast based on interpolated station data
pan-Europecrop monitoring based on ECMWF ensemble models
pan-Europe and Asiacrop monitoring based on ECMWF deterministic forecast
pan-Europecrop monitoring based on interpolated station data
pan-Europeweather monitoring based on ECMWF ensemble models
pan-Europe and Asiaweather monitoring based on ECMWF deterministic forecast
pan-Europe
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MARS Webviewer MARSOP3 services deliver and store large
amounts of basic and added value data (size is now 7 TB !)
Basic weather data / Remote Sensing based Vegetation Indices
Added value data generated in the various operational levels of the MARSOP3 services through downscaling and aggregation
Online viewer enables user to perform spatial and temporal analysis of global state-of-art data sets in a customized way
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Exploring the data by using the Mars webviewerhttp://www.marsop.info
Note:
Possibility to register
(normally access is granted for half a year)
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Login to the Mars webviewer
guest1 ispra
guest2ispra
...
...
...
...
...
guest30 ispra
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Choices at startup
• Region of interest• Zoom to specific
part
• Result typeMap, Graph, Quicklook
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MARSOP3: regions of interest
Demo
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Viewer capabilities: Produce MAPS and GRAPHS for spatial and
temporal analysis: On the fly created from the data; based on user choices Large amount of indicators available
View QUICKLOOKS Static, preprocessed results from crop monitoring by remote
sensing. Indicators: • Normalized Difference Vegetation Index (NDVI)• Dry Matter Productivity (DMV)• Fraction of Absorbed Photosyntheticly Active Radiation
(fAPAR)
• Rainfall estimates (for whole Africa only)
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Map and graphRainfall anomaly
april / may
Example of weather indicators
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Quicklook
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MARSOP: list of operational servicesweather monitoring based on interpolated station data
Africarainfall estimates based on MSG and observed rainfall
pan-Europeweather and vegetation indices based on MSG-SEVIRI
pan-Europe and Horn of Africavegetation indices based on MODIS-250m sensor
pan-Europevegetation indices based on METOP-AVHRR sensor
globalvegetation indices based on NOAA-AVHRR sensor
globalvegetation indices based on SPOT-VEGETATION sensor
globalcrop specific drought monitoring
globalweather monitoring based on ECMWF deterministic forecast
pan-Europecrop yield forecast based on ECMWF ensemble models
pan-Europe and Asiacrop yield forecast based on ECMWF deterministic forecast
pan-Europecrop yield forecast based on interpolated station data
pan-Europecrop monitoring based on ECMWF ensemble models
pan-Europe and Asiacrop monitoring based on ECMWF deterministic forecast
pan-Europecrop monitoring based on interpolated station data
pan-Europeweather monitoring based on ECMWF ensemble models
pan-Europe and Asiaweather monitoring based on ECMWF deterministic forecast
pan-Europe
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Datasets and resolutions
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Quicklook: define contentUser defines which part of the data will be visualized
Hierarchical choices:
•Resolution
•Theme (service) Indicator
•Function
•Time period and other additional parameters
Push the Push the buttonbutton
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Quicklook: view resultPossible user actions:
= home, start again
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Define content: FunctionUsed everywhere
Default: Year of Interest (YOI),
and default the year of interest is the actual year
Other: Long term average (LTA)
Difference with long term average
Difference with previous year
Difference with any other year (availability depends on situation)Important to see the spatial distribution of temporal effects or anomalies ! Demo
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Map: map actionsMap mode buttons:
Activate one, then click inside the map
Map action buttons:
Perform action immediate on click
Additional functionality:
Leave this map window, start other part
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Map: define contentUser defines which part of the data will be visualized
Hierarchical choices:
•Resolution
•Theme (service)
•Crop / Landcover
•Indicator
•Function
•Time period and other additional parameters
•Aggregation type
Push the Push the buttonbutton
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Map: view result
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Map: Layers
= export or print
= home, start again= open additional
map windowMultiple map windows are linked
Demo
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Maps and Quicklooks: time out Hands on: Play around with the viewer in Africa Change the resolution and view the result map Change the theme and view the result map Switch between ‘Quicklooks’ and ‘Maps’ Change the indicator and view the result map Play with the function and view the result map Play with the time period and view the result map Open multiple linked maps and play around Go to the ‘Layers’ tab and add additional layers to the
map
Don’t change the legend, and don’t look at graphs
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Graphs Always act on at least one ‘spatial entity’, so on a
specific area This ‘spatial entity’ can be of any available
resolution So it can be:
a country (Admin Level 0 = Countries) a district (Admin Level 1 = Districts) a grid cell
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Graphs: opening a graph Select a ‘spatial entity’ from the map
Inside the map, activate the ‘Select feature’ tool:
Click inside the map in order to select an area The selected area gets highlighted (maplayer must be visible)
Click on the ‘Add graph window’ button:
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Map: opening a graph
= export or print
= home, start again= open additional
map windowMultiple map windows are linked
Shown before
= open graph window for selected spatial entity
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Graphs
Select the ‘graph type’:
Demo
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Graph types All available years Bar chart Extra options:
One specific year, one indicator, multiple spatial entities Line chart, more spatial entities possible (up to 6) Extra options: and Shift-click !
One specific year, multiple indicators, one spatial entity Line chart, more chart series possible (up to 6) Extra options:
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Graph: define contentUser defines which part of the data will be visualized
Push the Push the buttonbutton
Hierarchical choices:
•Theme (service)
•Crop / Landcover
•Indicator
•Function
•Time aggregation
•Overlapping profileNote: Time period is specified in separate tab
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Graph: define contentPush the Push the buttonbutton
Time period:
•Default starts at January 1st
•Timescale depends on dataset (Theme)
•For Africa mostly ‘Dekad’ (10 day periods)
• 1 – 10
• 11 – 20
• 21 – end of Month
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Define content: Overlapping profileUsed for graphs
Use:
Explore extreme situations
Compare with other years
Note: The Year of Interest (YOI) is excluded in calculating the overlapping profile values !
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Maps and GraphsMaps and Graphs are linked
Functionality at the map window for linking Select feature tool, works on the ‘active layer’ The graph gets updated automatically on a change of the selected
area (if the selected area is of the same resolution) The active layer can be changed on the Layers-tab :
Demo
On a resolution changes the active layer changes automatically
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Map and graph
Indication of green and healthy
vegetation cover
Example of remote sensing based vegetation index
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Maps and Graphs: time out
Hands on: Play around with maps and graphs in Africa
Open a map window and click the ‘Add graph’ button: What happens?
Make sure you can open a graph window from the map window Try the three different graph types, view the graph results With a graph result on the screen: Change the selected spatial entity by selecting
another one from the map Change the theme, the crop / landcover, the indicator and view the result graphs Play with the function and the time period and view the result graphs Play with the overlapping profile and view the result graphs Switch between ‘Africa’, ‘West Africa’ and ‘Horn of Africa’ Open multiple linked maps, open a graph from every map window and play around
Go to ‘Home’ and start a graph: graph only window Question: how to select a ‘spatial entity’
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Map legends
Each indicator has a default legend, the system legend.
Possible user actions:
-Edit: Change a legend.-Select: Select a different legend.-Delete: Delete a previous saved legend.
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Map legends
Edit legend ‘by hand’:Add / remove legend classesChange legend class range, color or label
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Legend type: Auto-calculate other than normal legendsMap legends
Class boundaries get calculated on the fly based on the actual values which correspond with the current user choices for variable and time-period.
Two types:Equal areaEqual width
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Map legends
Update map = Preview map with the new legend settings. The legend is not yet saved.Save as = Add this legend to the database storage, for later reuse. It must be stored under a new name.Save = overwrite this legend with the new settings (only available for an earlier saved legend).
Show and / or store the result:
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Map legendsSelect legend: Choose from a selection of legends, designed for this indicator
Check ‘Show all’ to choose from all legends:
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Map legends
Delete legend: Throw away an earlier saved legend
Demo
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Map legends: time out Hands on: Play around with legends Open a map window and view a result map Start the legend editor Add a legend class and view the result map Remove a legend class and view the result map Change the color for some classes and view the result map Play around with the legend types (normal / equal area / equal width) and
view the result maps Save the new legend for later reuse Did you give the new legend a name? If not, what happened? Save some more legends Switch between saved legends and view the result maps Remove a saved legend
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Map viewer
Examples: time period: look at growing seasons starting in October or NovemberGo deeper into (and show) aggregation type, within short time period (for Minimum Temperature or so).
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Map viewer: Map export facilities Print Save as .pdf Save as .png
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Map viewer: export facilities
Print Save as .pdf Save as .png Save as .csv, to
open in Excel
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Map viewer: Quicklook export facilities
After download: Print from your browserSave from your browser Demo
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Export facilities: time out Hands on: Play around with the export facilities Open a quicklook window and view a quicklook result Download the quicklook Save the quicklook image on your hard disk Open a map window and view the result map Export the result map to your local file system Open a graph window and view the result graph Export the result map to your local file system. Try different formats,
including .csv If you have Excel installed: Open the .csv file in Excel