Tuesday, November 27, 2012

Vector Analysis Exercise: Ruffed Grouse


Background: Ruffed grouse is a northern game bird species that thrives in disturbed forest ecosystems. The best grouse habitat is found in a mosaic of aspen patches burned or clear-cut every 40 to 50 years. The mosaic provides food and cover in close proximity and refuges from predators, see:
http://www.dnr.state.mn.us/volunteer/novdec06/grouse.html

http://en.wikipedia.org/wiki/Ruffed_Grouse

http://ja.wikipedia.org/wiki/エリマキライチョウ


Final Output:

So making this map is easy? No, it required a lot of feature to create from original data. Probably spent over 6 hours to follow steps and hints.



It was not a easy job.



Monday, November 19, 2012

Lab 9 - Digitizing

Displaying XY Data

Datum: GCS, WGS 1984/NAD 1983

X Field = Easting
Y Field = Northing
Z Field = Elevation (for 3D map creating)

Export feature into my database.


Lab 9 - Creating and Editing Data

Digitizing

Chapter 15: Creating features
    Drawing features
    Using features construction tools






Chapter 16: Editing features and attributes
    Deleting and modifying features
    Splitting and merging features
    Editing feature attribute values




There has trouble about to drugging line into road, I unable to do as textbook did... 








Lab 9 - Geodatabases

ASSIGNMENT

Databases (Mine).





Monday, November 12, 2012

Lab 8 - Exercise

Vector Analysis Exercise


A.Data Preparation: Extraction Techniques




B. Proximity Analysis 

    1. Multiple Ring Buffer




    2. Near
How far from an urban area was the 1872 quake, which measured 7.76 in magnitude?


FID 62: 0.7145 (km?)


    3. Thiessen Polygons


C. Overlays

   1. Union
 - the relationship between urban area vs. county size



    2. Identity

What percentage of each county is federally operated?
Which federal land types are located in each county?




Wednesday, November 7, 2012

Lab 8 - Chapter 12

Chapter 12: Analyzing spatial data

Buffering features
Overlaying data
Calculating attribute values



















Note:
Harvesting natural resources in natural park or ecological sensitive area probably are politically incorrect, in fact, if we know where is limit for gaining natural resources without interference environment it would be a win-win solution. That's a part of what GIS science can do for this job.


Lab 8 - Chapter 11

Chapter 11: Preparing data for analysis

Dissolving features
Creating graphs
Clipping layers
Exporting data