Springshed Management Training Curriculum

2016The Springs Initiative

SESSION TITLE:

Google Earth for Springs

SECTION: Application of Knowledge

MODULE: Data & Analysis

AUTHORS: Dr Jared Buono

CONTRIBUTING ORGANIZATIONS: Arghyam

PURPOSE: How to use Google Maps & Earth, and interpretation of satellite imagery

IMPACT: Participants should be able to identify geologic features & mark and upload datapoints

TIME REQUIRED: 60 minutes

MATERIALS: This ppt AND hands-on time with Google online, requires computers & internet access

ADDITIONAL RESOURCES:

Lesson Plan

• Description: Overview of Google Earth and Google Maps, how to find locations, upload GPS points, create objects such as springsheds and how to recognize environmental features such as forests, geology, water bodies

• Outcome: Participants will be familiar with basic online mapping and uses, will be able to see topography and delineate a watershed & map basic features.

• Materials – powerpoint presentation (examples); internet enabled computers with Google Earth, predetermined locations for case studies

• Activities:• 15 minutes: Presentation of maps and their uses in springshed management • 20 minutes: Finding your springshed in google maps, viewing toposheets and

printing maps • 25 minutes: Delineating springshed in Google Earth, adding points, lines, polygons.

Google Map Products

• Google Maps – online app for computer and phone, GPS connected, • basic use and navigation• Topography

• Google Earth – free software for viewing maps and satellite pictures & topography• Ortho views• Can add your own features, upload data

points

• Mymaps is like a hybrid between maps and earth (allows you to create and upload features)

Google Earth

• Navigation

• Files, ‘places’

• Photos through panaremo

• 360 views

Google Earth

• Can add points, lines and polygons

• Can step through time with different dates of satellite imagery

• Can turn night to day for shaows

• Measuring distances

• Add-ons to measure area

• Pro version should be free for download

Geology in satellite imagery

• Geologic differences shown by vegetation

• Compact versus vesicular basalt means different water holding capacity, slopes, soil formation, etc

• Western Ghats

Geology in satellite imagery• Geology more than just rock

identification• Clues are in vegetation,

topography, rivers & lakes, even habitations

• Look for lineaments (linear features) that cross topography – faults or fractures

• Sharp changes in slope – faults or changes in rock type

• Not necessarily at springshedscale, but often has local similarities affecting springs

Geology in satellite imagery

• Geology more than just rock identification

Geology in satellite imagery

• Geology more than just rock identification

Dendritic versus straight

Dendritic means a branching pattern resultingfrom erosion & fluvial geomorphology

Dendritic versus straight

FRACTURE: Cuts straight through landscape

Displays branching pattern

Geology in satellite imagery

• Geologic differences shown by vegetation

• Compact versus vesicular basalt means different water holding capacity, slopes, soil formation, etc

• Western Ghats

Google Maps

• Best to sign in with a google account

• Navigate by dragging, searching or lat lon

• In left menu, can choose ‘terrain’ to get a rough topo map• Click any point to get location name

and latitude & longitude

• Lower left menu, can choose ‘earth’ to see latest satellite imagery

• Choose explore button to see photos and 360 views

Google Maps – Choose terrain feature to get a topomap for vertical profiles, delineating watersheds, etc

Uploading GPS points to MyMaps

• Open My Maps, new or existing map.• In legend on the left, click the layer

where you want to add data• Click Import (can be CSV, TSV, KML,

KMZ, XLSX or spreadsheets from Google Drive)• Needs to be in columns, label first row,

requires at least x,y,z in decimal degrees

• Pick one or more columns that identify the location of your data

• Pick a single column to label the data on the map

• Can later export as *.kml to Google Earth

Google Earth

• Best to sign in with a google account

• Navigate by dragging, searching or lat lon

• In left menu, can choose ‘terrain’ to get a rough topo map• Click any point to get location name

and latitude & longitude

• Lower left menu, can choose ‘earth’ to see latest satellite imagery

Uploading GPS points to Google Earth

• Connect GPS to computer via USB, turn GPS on (may need a driver)

• Go to the Tools menu, select GPS

• Select device and Waypoints (other files are tracks and routes) and click Import

• Save by right-clicking on the GPS data folder in Places

• From a file – requires *.gpxformatting so use mymaps

Uploading GPS points to Google Earth

Uploading Steps, 1

• Open Excel.

• Enter these words into separate cells on the first row: "Latitude", "Longitude", "Name", "Description", and "Icon".

• On the rows that follow, enter the attributes of each point.

• "Latitude" and "Longitude" are required. The other columns are optional.

• "Name" is the label that appears next to each icon on Google Earth.

Uploading Steps, 2

• "Description" is the text that appears in the Google Earth pop-up balloon. An Excel formula can be used to combine data from several columns.

• "Icon" designates the icon that is displayed for each point. An easy way to get an icon is to enter a number from the table below. If the Icon column is left blank or if it is missing, icon number 166 is displayed. You can also enter an icon's "www" web address. If you don't want an icon, enter the word "none".

• Save the worksheet.

Uploading Steps, 3• If you dont have it, download the pro version

here: http://www.google.com/earth/download/gep/agree.html• After you install google earth, the best way to do this is:

• 1- directly upload your points from the GPS itself. Simply plug your GPS into the computer via the USB cable that came with your GPS, turn the GPS on, open Google Earth and go to Tools>GPS> choose waypoints>Import

• Once it opens, make sure you click on the folder and "Save to My Places" before closing Google Earth.

• See this link for more info: https://support.google.com/earth/answer/148095?hl=en

• This link is also a good one: https://www.google.com/earth/outreach/tutorials/importgps.html

Uploading Steps, 4

• 2- the next best thing is to make your own data file for import to google earth. This requires you make an excel spreadsheet and create columns with these headings: latitude, longitude, elevation, ID

• For lat and lon enter just the decimal degrees - dont put any degree symbols, spaces or 'N' or 'E', etc. For the elevation just put the meters and nothing else. The ID is simply your waypoint number, village name, ect.

• Once youve entered your data, do a save as *.csv (this is an option instead of saving as an excel sheet *.xlsx). Then simply open Google Earth>File>Import> and navigate to your *.csv file. Again, make sure you "Save to My Places" before closing out.

• PS- if your GPS is set for degrees minutes seconds or something else use these sites to convert the points: http://www.onlineconversion.com/map_decimaldegrees.htm

• https://www.fcc.gov/media/radio/dms-decimal• Or do all points at once in Excel - follow this

video: https://www.youtube.com/watch?v=S_nxWwtYfq4

Google Earth Practical

• Find your district, house, work area

• Place a point on your house

• Polygon on work area

• Mark anything that might be related to hydrogeology in your work area• River, spring, fracture, vegetation changes, etc