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Part I. Investigation on Landscape-Albedo (P41R28)

Part I. Investigation on Landscape- Albedo (P41R28)

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Part I. Investigation on Landscape- Albedo (P41R28). 1. VCT (1985to2005) Sean’s version. 11 LndQA used to create this mask lndQA_L5041028_02819880929 lndQA_L5041028_02819950901 lndQA_L5041028_02819980808 lndQA_L71041028_02819990920 lndQA_L71041028_02820010808 - PowerPoint PPT Presentation

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Page 1: Part I. Investigation on  Landscape- Albedo  (P41R28)

Part I. Investigation on Landscape-Albedo (P41R28)

Page 2: Part I. Investigation on  Landscape- Albedo  (P41R28)

1. VCT (1985to2005) Sean’s version

Page 3: Part I. Investigation on  Landscape- Albedo  (P41R28)

2. Mask for the statistics of landscape albedo over each BRDF-LUT based lndAlbedo

Not available

Undisturb -(24,919,466)

Fire (low) - (1,265,927)

Fire (medium) - (931,019)

Fire (high) - (1,112,213)

Non-fire - (653,558)

Legend - (available pixel# of each category)

11 LndQA used to create this mask•lndQA_L5041028_02819880929

•lndQA_L5041028_02819950901

•lndQA_L5041028_02819980808

•lndQA_L71041028_02819990920

•lndQA_L71041028_02820010808

•lndQA_L71041028_02820010909

•lndQA_L71041028_02820020912

•lndQA_L71041028_02820020928

•lndQA_L5041028_02820040808

•lndQA_L5041028_02820040925

•lndQA_L5041028_02820050811

Available Pixel# Whole scene: 28,882,183Disturbed: 3,962,717Undisturbed: 24,919,466

Page 4: Part I. Investigation on  Landscape- Albedo  (P41R28)

...

...

1985

1986

1998

2005

Temporal Landsat scenes Mask of available statistic region (1985-2005)

Fire-disturbance (low)

Fire-disturbance(medium)

Fire-disturbance (high)

Non-Fire disturbance

No-disturbance

Disturbed region

Cloud/cloud shadow/FillVal

Legend of statistics region

Mask1 (that Yanmin is working on): Yellow-green : non-disturbance region, Grey :non available regionOther color: separated disturbed region

(see the related legend)

Mask2 (our initial plan):Yellow-green : non-disturbance region, Grey :non available regionBlue: disturbed region

3. Statistics scheme of landscape albedo

Note: two masks are used respectively

Page 5: Part I. Investigation on  Landscape- Albedo  (P41R28)

4. landscape Black-Sky-Albedo of P41R28 in Aug.& Sep.(upper) and separated (lower two plots)

1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 20050.07

0.08

0.0900000000000001

0.1

0.11

0.12La

ndsc

ape

Albe

do

1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 20050.07

0.08

0.09

0.1

0.11

0.12Whole (BSA)Disturbed (BSA)Undisturbed (BSA)

Land

scap

e Al

bedo

Pixel# of each category Whole: 28,882,183Disturbed:3,962,717NonDisturbed:24919466

4 August acquisitions ONLY

1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 20050.07

0.08

0.09

0.1

0.11

0.12

Acquisition date of P41R28 (MT scene)

Land

scap

e Al

bedo

7 September acquisitions ONLY

Page 6: Part I. Investigation on  Landscape- Albedo  (P41R28)

5. landscape White-Sky-Albedo of P41R28 in Aug.& Sep.(upper) and separated (lower two plots)

1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 20050.07

0.08

0.09

0.1

0.11

0.12La

ndsc

ape

Albe

do

1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 20050.07

0.08

0.09

0.1

0.11

0.12Whole (WSA)Disturbed (WSA)Undisturbed (WSA)

Land

scap

e Al

bedo

Pixel# of each category Whole: 28,882,183Disturbed:3,962,717NonDisturbed:24919466

4 August acquisitions ONLY

1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 20050.07

0.08

0.09

0.1

0.11

0.12

Acquisition date of P41R28 (MT scene)

Land

scap

e Al

bedo

7 September acquisitions ONLY

Page 7: Part I. Investigation on  Landscape- Albedo  (P41R28)

Landscape Black-Sky-Albedo (BSA)

Year mm dayWhole-Scene (Pixel#:28,882,183) Disturbed (Pixel#:3,962,717) Undisturbed (Pixel#:24,919,466)

Mean MaxVal MinVal Stdev Mean MaxVal MinVal Stdev Mean MaxVal MinVal Stdev1998 8 8 0.0964 0.4912 0.0000 0.0376 0.0949 0.3459 0.0011 0.0338 0.0966 0.4912 0.0000 0.0349

2001 8 8 0.0959 0.4184 0.0000 0.0376 0.0968 0.3710 0.0034 0.0338 0.0958 0.4184 0.0000 0.0349

2004 8 8 0.0967 0.4926 0.0000 0.0376 0.1065 0.4295 0.0014 0.0338 0.0951 0.4926 0.0000 0.0349

2005 8 11 0.1043 0.4416 0.0000 0.0376 0.1153 0.2948 0.0067 0.0299 0.1025 0.4416 0.0000 0.0349

1988 9 29 0.1026 0.5553 0.0000 0.0537 0.0845 0.5553 0.0007 0.0438 0.1054 0.5481 0.0000 0.0549

1995 9 1 0.0950 0.6036 0.0000 0.0430 0.0892 0.5162 0.0030 0.0398 0.0959 0.6036 0.0000 0.0449

1999 9 20 0.1004 0.5017 0.0000 0.0484 0.0984 0.3989 0.0000 0.0438 0.1007 0.5017 0.0000 0.0449

2001 9 9 0.0962 0.4391 0.0000 0.0430 0.0955 0.3700 0.0004 0.0398 0.0964 0.4391 0.0000 0.0449

2002 9 12 0.0970 0.4684 0.0000 0.0430 0.1014 0.3473 0.0026 0.0398 0.0963 0.4684 0.0000 0.0399

2002 9 28 0.0990 0.5259 0.0000 0.0484 0.1009 0.3746 0.0014 0.0458 0.0987 0.5259 0.0000 0.0499

2004 9 25 0.0942 0.4728 0.0000 0.0430 0.0992 0.3499 0.0017 0.0418 0.0935 0.4728 0.0000 0.0449

Landscape White-Sky-Albedo (WSA)

Year mm dayWhole-Scene (Pixel#:28,882,183) Disturbed (Pixel#:3,962,717) Undisturbed (Pixel#:24,919,466)

Mean MaxVal MinVal Stdev Mean MaxVal MinVal Stdev Mean MaxVal MinVal Stdev1998 8 8 0.1086 0.5395 0.0006 0.0376 0.1059 0.3719 0.0015 0.0378 0.1091 0.5395 0.0006 0.0399

2001 8 8 0.1085 0.4629 0.0000 0.0376 0.1073 0.4127 0.0046 0.0378 0.1087 0.4629 0.0000 0.0399

2004 8 8 0.1089 0.5369 0.0000 0.0376 0.1173 0.4714 0.0020 0.0358 0.1075 0.5369 0.0000 0.0399

2005 8 11 0.1174 0.4844 0.0000 0.0376 0.1271 0.3433 0.0077 0.0338 0.1158 0.4844 0.0000 0.0399

1988 9 29 0.1040 0.5644 0.0000 0.0537 0.0856 0.5644 0.0008 0.0438 0.1069 0.5551 0.0000 0.0549

1995 9 1 0.1001 0.6308 0.0000 0.0430 0.0937 0.5292 0.0033 0.0418 0.1011 0.6308 0.0000 0.0449

1999 9 20 0.1053 0.5215 0.0000 0.0484 0.1028 0.4169 0.0000 0.0458 0.1057 0.5215 0.0000 0.0499

2001 9 9 0.1027 0.4643 0.0000 0.0430 0.1012 0.3905 0.0008 0.0438 0.1030 0.4643 0.0000 0.0449

2002 9 12 0.1030 0.4931 0.0000 0.0430 0.1070 0.3684 0.0030 0.0418 0.1023 0.4931 0.0000 0.0449

2002 9 28 0.1017 0.5376 0.0000 0.0484 0.1033 0.3824 0.0015 0.0478 0.1014 0.5376 0.0000 0.0499

2004 9 25 0.0972 0.4846 0.0000 0.0430 0.1018 0.3592 0.0019 0.0438 0.0964 0.4846 0.0000 0.0449

5. Tables of Mean/Maximum/Minimum values of landscape Black-Sky-Albedo & White-Sky-Albedo over 11 MT lndAlbedo

Page 8: Part I. Investigation on  Landscape- Albedo  (P41R28)

Part II. Investigation on Separated disturbance types

& four selected small regions

(undisturbed, NonFire, High-Fire, and Low-Fire)

Page 9: Part I. Investigation on  Landscape- Albedo  (P41R28)

P41R28 VCT map (85 to2005 Sean’s Version)

NonFire disturbed region

Undisturbed region Fire disturbed region (high)

Fire disturbed region (low)

Four selected small regions for individual temporal BSA maps

Page 10: Part I. Investigation on  Landscape- Albedo  (P41R28)

1. Temporal Black-Sky-Albedo for the “Undisturbed small region”

Year Month Day Pixel# BSA_mean BSA_max BSA_min BSA_Stdev1988 9 29 986703 0.1067 0.3866 0.0028 0.05161995 9 1 986703 0.0991 0.3206 0.0028 0.04271998 8 8 986703 0.1026 0.2742 0.0136 0.03581999 9 20 986703 0.1004 0.3379 0.0000 0.04372001 8 8 986703 0.1008 0.2714 0.0033 0.03492001 9 9 986703 0.0972 0.3059 0.0051 0.03992002 9 12 986703 0.0990 0.3195 0.0044 0.04162002 9 28 986703 0.0993 0.3618 0.0030 0.04802004 8 8 986703 0.0988 0.2721 0.0057 0.03522004 9 25 986703 0.0915 0.3513 0.0027 0.04042005 8 11 986703 0.1032 0.2760 0.0079 0.0344

Page 11: Part I. Investigation on  Landscape- Albedo  (P41R28)

2. Temporal Black-Sky-Albedo for the “NonFire disturbance small region”

Year Month Day Pixel# BSA_mean BSA_max BSA_min BSA_Stdev1988 9 29 910012 0.0846 0.3814 0.0021 0.04471995 9 1 910012 0.0804 0.3294 0.0028 0.04011998 8 8 910012 0.0827 0.2911 0.0040 0.03661999 9 20 910012 0.0833 0.3374 0.0031 0.04062001 8 8 910012 0.0812 0.2711 0.0032 0.03532001 9 9 910012 0.0790 0.3287 0.0025 0.03742002 9 12 910012 0.0781 0.3068 0.0033 0.03642002 9 28 910012 0.0769 0.3259 0.0000 0.03832004 8 8 910012 0.0833 0.2916 0.0000 0.03632004 9 25 910012 0.0794 0.2979 0.0017 0.03812005 8 11 910012 0.0913 0.2550 0.0114 0.0372

Page 12: Part I. Investigation on  Landscape- Albedo  (P41R28)

3. Temporal Black-Sky-Albedo for the “High Fire disturbed small region”

Year Month Day Pixel# BSA_mean BSA_max BSA_min BSA_Stdev

1988 9 29 985155 0.1149 0.5265 0.0034 0.05681995 9 1 985155 0.1049 0.6036 0.0071 0.04671998 8 8 985155 0.1021 0.4912 0.0085 0.03841999 9 20 985155 0.1092 0.5017 0.0064 0.04802001 8 8 985155 0.1028 0.4184 0.0139 0.03942001 9 9 985155 0.1072 0.4391 0.0072 0.04672002 9 12 985155 0.1155 0.4684 0.0143 0.04382002 9 28 985155 0.1152 0.5259 0.0074 0.05062004 8 8 985155 0.1086 0.3923 0.0000 0.03912004 9 25 985155 0.1075 0.4284 0.0060 0.04522005 8 11 985155 0.1180 0.3849 0.0202 0.0393

Page 13: Part I. Investigation on  Landscape- Albedo  (P41R28)

4. Temporal Black-Sky-Albedo for the “Low Fire disturbed small region”

Year Month Day Pixel# BSA_mean BSA_max BSA_min BSA_Stdev1988 9 29 884750 0.1018 0.4513 0.0034 0.06721995 9 1 884750 0.0976 0.3390 0.0048 0.05761998 8 8 884750 0.1000 0.3027 0.0086 0.05091999 9 20 884750 0.1043 0.3627 0.0045 0.06122001 8 8 884750 0.0989 0.3710 0.0069 0.05102001 9 9 884750 0.0984 0.3377 0.0038 0.05652002 9 12 884750 0.0976 0.3269 0.0053 0.05602002 9 28 884750 0.1011 0.3712 0.0029 0.06342004 8 8 884750 0.0978 0.2930 0.0054 0.05062004 9 25 884750 0.0941 0.3399 0.0051 0.05682005 8 11 884750 0.1049 0.2957 0.0173 0.0509

Page 14: Part I. Investigation on  Landscape- Albedo  (P41R28)

0 2 4 6 8 10 120

20

40

60

80

100

NonFire-SmallRegionUndisturbed Small RegionHigh-Fire disturbed Small RegionLow-Fire disturbed Small Region

DN Value of selected VCT map (30km by 30km, 85to05 Sean's version)

Pixe

l per

cent

(%)

0 2 4 6 8 10 120

5

10

15

20NonFire-SmallRegionUndisturbed Small RegionHigh-Fire disturbed Small RegionLow-Fire disturbed Small Region

DN Value of selected VCT map (30km by 30km, 85to05 Sean's version)

Pixe

l per

cent

(%)