Showing posts with label aspect. Show all posts
Showing posts with label aspect. Show all posts

Sunday, May 17, 2020

Wisdom of Education


photo by YuMan


At the parent meeting, the teacher did these four questions on the blackboard:

2 + 2 = 4

4 + 4 = 8

8 + 8 = 16

9 + 9 = 20

Parents said: "You miscalculated."

The teacher turned around and said slowly: "Yes, everyone sees clearly, this question is wrong. But I have counted three questions correctly, why no one praised me, but just saw me The wrong one! "

The teacher then said meaningfully: "Parents, the true meaning of education is not to discover the mistakes of children, but to appreciate what they did right."

Comprehension:

The same is true of being a human. You treat him/her nicely for a hundred times, maybe he/she has forgotten; once he/she is unsatisfactory, he/she may obliterate everything!

This is the humanity principle of 100-1 = 0.

This is true between friends, as well as between relatives and families.

This topic is mentioned today in order to make friendship last forever and affection forever.

Take a step back among friends, and make a step higher among loved ones.

Thanks to the grace of dripping water, one should return a fountain of water.

This is the truth of life.

This is true for children, as well as adults.

Friday, November 12, 2010

Lab 6 DEMs in ArcGIS




         I selected the approximate area of Sequoia National Forest. The map’s spatial reference is NAD 1983 UTM Zone 11 N and the central Meridian is -117. The forest is located in the southern Sierra Nevada mountains of California. The national forest is named for the majestic Giant Sequoia trees which populate 38 groves within the boundaries of the forest. It also covers 1,787.87 square miles (4,630.55 km²), and ranges in elevation from 1,000 feet (300 m) in the foothills of the Sierra Nevada to over 12,000 feet (3,700 m).The full extent of the area I posted is around -118.9014 degree for the left, -118.4361 degree for the right, 36.1952 degree for the top, 35.8693 degree for the bottom. Its columns and rows are 1463x1255. Its cell sizes X and Y are both 28.2525103 meters. There is only one band. Moreover, the area’s grid format is continuous source type. The slope map's mean is 18.96, while hillshade map’s mean is 170.208. Furthermore, the aspect map’s mean is 189.9564. Last but not least, I exaggerate the 3D map by multiplying 10 times with a base height of 10000, resulting in 100000 for Z unit conversion.