Landsat 7 Scene Selection Strategy Based on Seasonal Greenness of Land Cover Type Landsat 7 ETM+ scene selection for MRLC 2000 can be improved based on information on land cover characteristics and vegetation phenology. Such information can be derived from the multi-temporal AVHRR data (e.g. Loveland and Belward, 1997, Reed et al., 1994).
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Landsat 7 Scene Selection Strategy Based on Seasonal Greenness of Land Cover Type
Landsat 7 Scene Selection Strategy Based on Seasonal Greenness of Land Cover Type Landsat 7 ETM+ scene selection for MRLC 2000 can be improved based on information on land cover characteristics and vegetation phenology. - PowerPoint PPT Presentation
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Landsat 7 Scene Selection Strategy Based on Seasonal Greenness of Land Cover Type
Landsat 7 ETM+ scene selection for MRLC 2000 can be improved based on information on land cover characteristics and vegetation phenology.
Such information can be derived from the multi-temporal AVHRR data (e.g. Loveland and Belward, 1997, Reed et al., 1994).
Using temporal AVHRR NDVI greenness data to aid Landsat 7 scene selection for MRLC 2000. A scene selection strategy can be established for each mapping zone (or path/row). The methodology provides a consistent framework across the nation to populate the Landsat 7 imagery.
The AVHRR data used in this study are from 1994-1998. The data have been smoothed to reduce cloud effect (Reed, 1994).
Land cover data used to stratify within each mapping zone are from the National Land Cover Data (NLCD) developed from the MRLC 1990 project.
Selection criteria: 1. Capture major vegetation phenology (leaf-on and leaf-off, peak greenness)2. Maximize separation among dominant land cover types.3. Select up to 3 scenes over a growing season for each mapping zone. First scene: July-August (15-16th biweek period), near peak greenness and distinct difference in greenness among most land cover types. Second Scene: April (8-9th biweek period), leaf-off before peak greenness (except small grains)
large greenness difference between small grains and other land cover types. Third scene: Sept.-Oct. (20-21th biweek period), leaf-off after peak greenness.
Mapping zone 9 (AZ and NM Mountains)
110
115
120
125
130
135
140
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
shrubland
grasslands
bare rock
mixedforest
Mapping zone 9 (AZ and NM Mountains)
110
115
120
125
130
135
140
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
shrubland
grasslands
bare rock
mixedforest
Mapping zone 21 (E. OH and W. PA)
110
120
130
140
150
160
170
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
decid.foresthay/pasture
row crops
residential
woodywetland
Mapping zone 21 (E. OH and W. PA)
110
120
130
140
150
160
170
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
decid.foresthay/pasture
row crops
residential
woodywetland
Mapping zone 63 (SE GA and N FL)
110
115
120
125
130
135
140
145
150
155
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
evergreenforest
row crops
woodywetland
transitional
Mapping zone 63 (SE GA and N FL)
110
115
120
125
130
135
140
145
150
155
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
evergreenforest
row crops
woodywetland
transitional
Mapping zone 19 (Sierra Neveda)
100
110
120
130
140
150
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d) mixed
forestshrubland
grasslands
bare rock
decid.forestevergreenforest
Mapping zone 19 (Sierra Neveda)
100
110
120
130
140
150
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d) mixed
forestshrubland
grasslands
bare rock
decid.forestevergreenforest
Mapping zone 29 (S. and C. CA Plains and Hills)
100
110
120
130
140
150
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
grasslands
shrubland
evergreen
residential
row crops
hay/pasture
Mapping zone 29 (S. and C. CA Plains and Hills)
100
110
120
130
140
150
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
grasslands
shrubland
evergreen
residential
row crops
hay/pasture
Mapping zone 17 (S. ID and N. NV)
110
115
120
125
130
135
140
145
150
155
160
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
shrubland
grasslands
row crops
pasture/hay
bare rock
Mapping zone 17 (S. ID and N. NV)
110
115
120
125
130
135
140
145
150
155
160
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
shrubland
grasslands
row crops
pasture/hay
bare rock
Mapping zone 3 (Eastern SD)
110
120
130
140
150
160
170
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
row crops
pasture/hay
grasslands
samllgrains
deciduousforest
Mapping zone 3 (Eastern SD)
110
120
130
140
150
160
170
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
row crops
pasture/hay
grasslands
samllgrains
deciduousforest
Mapping zone 22 (E NE and KS)
100
110
120
130
140
150
160
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
row crop
grasslands
smallgrainshay/pasture
decid.forest
Mapping zone 22 (E NE and KS)
100
110
120
130
140
150
160
1 4 7
10
13
16
19
22
25
biweek period
ND
VI
(Sc
ale
d)
row crop
grasslands
smallgrainshay/pasture
decid.forest
map zone Location early season(optimal) month_1 (mean) peak (optimal time) month_2 (mean)late season(optimal time)month_3 (mean)1 WA and NE OR Feb 26 thr. Apr. 23 3 July 17 thr. Sept. 11 8 Oct 10 thr. Nov 20 112 coastal OR Feb 1 thr Mar 30 3 June 5 thr July 30 7 Sep 26 thr Nov 6 103 N coastal CA Feb 26 thr Apr 23 3 June 19 thr Aug. 13 7 Oct 10 thr Dec 4 114 S and C CA Feb 26 thr Apr 23 3 June 5 thr July 30 7 Oct 10 thr Dec 4 115 C. valley CA Feb 12 thr Apr 8 3 July 3 thr Aug 27 7 Dec 5 thr. Jan 28 16 Sierra NV March 26 thr June 4 5 Aug 14 thr Oct 9 9 Dec 5 thr. Jan 28 17 N CA & C OR Mar 25 thr May 7 4 June 5 thr Aug 13 7 Aug 14 thr Nov 6 108 SE WA & NE OR Mar 26 thr May 21 4 May 22 thr July 2 6 Aug 14 thr Oct 9 99 NE WA Feb 26 thr Mar 25 3 May 22 thr July 30 6 Aug 14 thr Sep 25 9
10 Western ID Feb 26 thr Mar 25 3 Jun 19 thr Aug 13 7 Aug 14 thr Sep 30 911 N. NV Apr 24 to June 4 5 June 5 thr July 30 6 Sep 12 thr Oct 23 1012 W. central NV May 8 thr June 18 6 June 19 thr Aug 13 7 Aug 28 thr Oct 23 913 S NV & S CA Jan 29 thr Mar 11 2 May 1 thr May 21 5 Aug 28 thr Oct 9 914 S AZ, basin & range Jan 29 thr Mar 11 2 Mar 12 thr May 7 4 Aug 28 thr Sep 25 915 AZ and NM montains Feb 26 thr Apr 23 3 May 22 thr July 16 6 Oct 24 thr Dec 4 1116 Central UT Mar 26 thr May 7 4 June 19 thr Aug 13 7 Sep 12 thr Nov 16 1017 E. NV & W UT Apr 9 thr May 21 5 June 5 thr July 30 6 Sep 12 thr Nov 6 1018 S. ID & N. NV Apr 24 thr June 4 5 June 19 thr Aug 13 7 Sep 26 thr Nov 6 10