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Gridding Report: HydroData Analysis

The document provides a summary of gridding analysis performed on hydrological data from a file with 313 data points. It includes univariate statistics describing the distribution of the original data and variables, results of regression and nearest neighbor analyses, and statistics describing the output grid generated with a cell size of 9m using kriging with a linear semi-variogram model and search parameters.

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el.onar09
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37 views5 pages

Gridding Report: HydroData Analysis

The document provides a summary of gridding analysis performed on hydrological data from a file with 313 data points. It includes univariate statistics describing the distribution of the original data and variables, results of regression and nearest neighbor analyses, and statistics describing the output grid generated with a cell size of 9m using kriging with a linear semi-variogram model and search parameters.

Uploaded by

el.onar09
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as RTF, PDF, TXT or read online on Scribd
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Gridding Report

Thu Aug 07 20:46:30 2008


Elasped time for gridding: 2.09 seconds

Data Source
Source Data File Name: D:\KULIAH CHY\PRAKTIKUM\MPD\HydroData.xls
X Column: A
Y Column: B
Z Column: C

Data Counts
Active Data: 313

Original Data: 313


Excluded Data: 0
Deleted Duplicates: 0
Retained Duplicates: 0
Artificial Data: 0
Superseded Data: 0

Univariate Statistics

X Y Z

Minimum: 685154.27226063 9066989.8433161 -4.05


25%-tile: 685532.06554731 9067229.112114 3.59
Median: 685604.3482368 9067319.3875598 19.74
75%-tile: 685682.98375468 9067384.5229609 23.43
Maximum: 686089.2537426 9067605.456817 29.19

Midrange: 685621.76300162 9067297.6500666 12.57


Range: 934.98148196726 615.61350090802 33.24
Interquartile Range: 150.9182073737 155.41084690765 19.84
Median Abs. Deviation: 75.973880229169 79.175023639575 5.15

Mean: 685596.35766041 9067313.5658048 14.619070042652


Trim Mean (10%): 685601.49772499 9067313.0881797 14.878973030546
Standard Deviation: 149.01434382829 122.55454602995 10.793780424653
Variance: 22205.274666577 15019.616752607 116.50569585562
Coef. of Variation: 0.73833563921383
Coef. of Skewness: -0.62135662511193

Inter-Variable Correlation

X Y Z

X: 1.000 -0.217 0.306


Y: 1.000 -0.336
Z: 1.000

Inter-Variable Covariance

X Y Z

X: 22205.274666577 -3960.5375772074 491.70294325884


Y: 15019.616752607 -443.84535397021
Z: 116.50569585562

Planar Regression: Z = AX+BY+C


Fitted Parameters

A B C

Parameter Value: 0.00052810830045416-0.00074804611246263


6435.3192813507
Standard Error: 0.000728778899534590.000886120652732038157.6862154715

Inter-Parameter Correlations

A B C

A: 1.000 -0.217 -0.275


B: 1.000 0.998
C: 1.000

ANOVA Table

Source df Sum of Squares Mean Square F

Regression: 2 188.28813929741 94.144069648704


0.80447
Residual: 310 36277.994663513 117.02578923714
Total: 312 36466.28280281

Coefficient of Multiple Determination (R^2): 0.0051633488479089

Nearest Neighbor Statistics

Separation |Delta Z|

Minimum: 0.77620387637334 0
25%-tile: 8.4538855629061 0.1
Median: 11.361522767095 0.4
75%-tile: 14.736503572555 1.39
Maximum: 69.540837307934 7.35

Midrange: 35.158520592154 3.675


Range: 68.76463343156 7.35
Interquartile Range: 6.2826180096485 1.29
Median Abs. Deviation: 3.1380260796412 0.37676073710164

Mean: 12.385249118197 0.99107136654605


Trim Mean (10%): 11.62817431665 0.82108911555582
Standard Deviation: 7.5858008869302 1.310866908484
Variance: 57.544375096151 1.7183720517584

Coef. of Variation: 0.6124867424576 1.3226766030507


Coef. of Skewness: 2.5892755366515 2.1155917287127

Root Mean Square: 14.523731297981 1.6433485647743


Mean Square: 210.93877081594 2.7005945053458

Complete Spatial Randomness

Lambda: 0.0005437924736275
Clark and Evans: 0.57763212476129
Skellam: 225.58686522611

Exclusion Filtering
Exclusion Filter String: Not In Use

Duplicate Filtering
Duplicate Points to Keep: First
X Duplicate Tolerance: 0.00011
Y Duplicate Tolerance: 7.3E-005

No duplicate data were found.

Breakline Filtering
Breakline Filtering: Not In Use

Gridding Rules
Gridding Method: Kriging
Kriging Type: Point

Polynomial Drift Order: 0


Kriging std. deviation grid: no

Semi-Variogram Model
Component Type: Linear
Anisotropy Angle: 0
Anisotropy Ratio: 1
Variogram Slope: 1

Search Parameters
Search Ellipse Radius #1: 560
Search Ellipse Radius #2: 560
Search Ellipse Angle: 0

Number of Search Sectors: 4


Maximum Data Per Sector: 16
Maximum Empty Sectors: 3

Minimum Data: 8
Maximum Data: 64

Output Grid
Grid File Name: D:\KULIAH CHY\PRAKTIKUM\MPD\HydroData9m.grd
Grid Size: 66 rows x 100 columns
Total Nodes: 6600
Filled Nodes: 6600
Blanked Nodes: 0

Grid Geometry

X Minimum: 685154.2722
X Maximum: 686089.2538
X Spacing: 9.444258585858
Y Minimum: 9066989.843
Y Maximum: 9067605.457
Y Spacing: 9.4709846153855

Grid Statistics

Z Minimum: -6.5017611377644
Z 25%-tile: -2.2771301740289
Z Median: 5.5377594555224
Z 75%-tile: 13.857875567426
Z Maximum: 29.376235399962

Z Midrange: 11.437237131099
Z Range: 35.877996537726
Z Interquartile Range: 16.135005741455
Z Median Abs. Deviation: 7.8537498794462

Z Mean: 6.784115253995
Z Trim Mean (10%): 6.3991081435292
Z Standard Deviation: 9.6920991675859
Z Variance: 93.936786274319

Z Coef. of Variation: 1.4286460068435


Z Coef. of Skewness: 0.52421340940635

Z Root Mean Square: 11.830511656467


Z Mean Square: 139.96100605381

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