Zambezi River & Omo River Basins

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This document discusses water temperature and leaf area index datasets for the Zambezi River Basin and surrounding areas derived from Landsat 8 and Sentinel-2 satellite imagery. It describes the processing steps to generate water temperature and leaf area index maps at monthly intervals from 2013 to 2016. Additional datasets provided for analysis include Landsat imagery, land use classifications, waterbody maps, and demographic data for the Zambezi and Omo River basins.

Ciencias

Water temperature from Landsat 8
Case study
• Water temperature from
Landsat 8 derived for the
Lake Cahora Bassa till
western part of Lake
Cariba.
• 4 tiles needed to cover
area
• Temporal coverage:
2013
• Temporal resolution:
~monthly
• => ~50 scenes, 250GB
2

Water temperature from Landsat 8
Case study
Processing
• Generation of a multi-
temporal water mask.
• Erosion of this mask at
the borders to eliminate
influence of coastal
areas and to take into
account the spatial
resolution of LS 8
• Calculation of water
temperature from
thermal band
3
Water

Water temperature from Landsat 8
Case study
4
• Extraction of
temperature at specific
points for validation

Leaf Area Index Datasets
Luia basin
• Leaf Area Index based on
Landsat & Sentinel data for
Luia basin
• 6 Sentinel-2 tiles needed to
cover area
• Temporal coverage: 2010-
2016
• Temporal resolution:
~monthly (increasing after
2013 with LS8 and 2016 with
Sentinel 2)
• => ~350 scenes, 1.1TB (only
scenes with low cloud cover!)
5
24.4.2016
24.4.201628.3.2016
27.4.201627.4.2016
28.3.2016

Leaf Area Index Datasets
Luia basin
6
12.8.2016
12.8.201615.8.2016
05.8.201605.8.2016
15.8.2016
36LVJ 36LVK 36LWJ 36LWK 36LUK 36LUJ
150918 150918 L5
150925 150925 150925 150925 L8
151004 S2A
160108 160108
151020 151020
151112
151119
151121
151223
160108 160108 160108
160122
160308 160308
160326
160328 160328 160328
160413
160424 160424
160427 160427
160507
160513 160513
160514 160514
160515
160527
160529 160529
• Merging over whole basin
only possible taking multiple
dates

Other Datasets provided by Vista
Lunsemfwa basin
7
Data provided for the field trip of Stefaan & Fitz
• Two atmospherically corrected Landsat 8 Images (false Colour
Infrared) , Path/Row 171/70 & 172/70 from June/July 2016
• corresponding land use classification
• Leaf Area Index

Other datasets provided by Vista
Zambesi basin
8
• Landsat mosaic in full
resolution for the whole
Zambesi catchment
• Waterbodies derived by
Landsat images of the
past 32 years (dataset
by JRC)
• Globcover datasets
(300m resolution,
2006&2009)
• Various demographic
datasets(population
count, density)

OMO RIVER BASIN
Case study cover Omo River
can be used as section title

10
Turbidity Lake Omo
Case study
70 [FNU]
0

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Zambezi River & Omo River Basins

1. ZAMBEZI RIVER BASIN

2. Water temperature from Landsat 8 Case study • Water temperature from Landsat 8 derived for the Lake Cahora Bassa till western part of Lake Cariba. • 4 tiles needed to cover area • Temporal coverage: 2013 • Temporal resolution: ~monthly • => ~50 scenes, 250GB 2

3. Water temperature from Landsat 8 Case study Processing • Generation of a multi- temporal water mask. • Erosion of this mask at the borders to eliminate influence of coastal areas and to take into account the spatial resolution of LS 8 • Calculation of water temperature from thermal band 3 Water

4. Water temperature from Landsat 8 Case study 4 • Extraction of temperature at specific points for validation

5. Leaf Area Index Datasets Luia basin • Leaf Area Index based on Landsat & Sentinel data for Luia basin • 6 Sentinel-2 tiles needed to cover area • Temporal coverage: 2010- 2016 • Temporal resolution: ~monthly (increasing after 2013 with LS8 and 2016 with Sentinel 2) • => ~350 scenes, 1.1TB (only scenes with low cloud cover!) 5 24.4.2016 24.4.201628.3.2016 27.4.201627.4.2016 28.3.2016

6. Leaf Area Index Datasets Luia basin 6 12.8.2016 12.8.201615.8.2016 05.8.201605.8.2016 15.8.2016 36LVJ 36LVK 36LWJ 36LWK 36LUK 36LUJ 150918 150918 L5 150925 150925 150925 150925 L8 151004 S2A 160108 160108 151020 151020 151112 151119 151121 151223 160108 160108 160108 160122 160308 160308 160326 160328 160328 160328 160413 160424 160424 160427 160427 160507 160513 160513 160514 160514 160515 160527 160529 160529 • Merging over whole basin only possible taking multiple dates

7. Other Datasets provided by Vista Lunsemfwa basin 7 Data provided for the field trip of Stefaan & Fitz • Two atmospherically corrected Landsat 8 Images (false Colour Infrared) , Path/Row 171/70 & 172/70 from June/July 2016 • corresponding land use classification • Leaf Area Index

8. Other datasets provided by Vista Zambesi basin 8 • Landsat mosaic in full resolution for the whole Zambesi catchment • Waterbodies derived by Landsat images of the past 32 years (dataset by JRC) • Globcover datasets (300m resolution, 2006&2009) • Various demographic datasets(population count, density)

9. OMO RIVER BASIN Case study cover Omo River can be used as section title

10. 10 Turbidity Lake Omo Case study 70 [FNU] 0

Zambezi River & Omo River Basins

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