Citation:

PANGAEA.845453

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Related to:

Lorenz, Katharina (2014): Fernerkundungsprodukte der Vegetationsvariablen NDVI auf verschiedenen räumlichen Skalen (RapidEye, MODIS) in der arktischen Tundralandschaft des Lena Delta [thesis]. Diploma Thesis, Universität Potsdam, Germany

Coverage:

Median Latitude: 73.000000 * Median Longitude: 125.616667 * South-bound Latitude: 72.800000 * West-bound Longitude: 124.500000 * North-bound Latitude: 73.400000 * East-bound Longitude: 127.500000

Date/Time Start: 2009-06-15T00:00:00 * Date/Time End: 2013-08-15T00:00:00

Event(s):

LD-T1 * Latitude: 72.800000 * Longitude: 127.500000 * Campaign: (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: AWI Arctic Land Expedition * Method/Device: Satellite remote sensing (SAT)

LD-T2 * Latitude: 73.400000 * Longitude: 124.500000 * Campaign: (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: AWI Arctic Land Expedition * Method/Device: Satellite remote sensing (SAT)

LD-T3 * Latitude: 72.800000 * Longitude: 124.850000 * Campaign: (Remote Sensing of POlar Non-glaciated and Sensitive Environments) * Basis: AWI Arctic Land Expedition * Method/Device: Satellite remote sensing (SAT)

Comment:

The data set contains MODIS Normalized Differenced Vegetation Index (NDVI) monthly averages for the summer months of June, July and August in the Lena Delta. The data are based on NDVI monthly average values derived from MODIS satellite data (MOD13A3) with a pixel size of one kilometer over a period from 2009 to 2013. In the Lena Delta it is possible to distinguished three terraces (terrace 1 (LD T1), terrace 2 (LD-T2) and terrace 3 (LD-T3)), because the vegetation structure on the terraces are quite different to each other. Please refer also to Morgenstern et. al (2011, doi:10.1594/PANGAEA.758728).

I investigated different NDVI statistics (min, max, mean and median) to understand the applicability of MODIS NDVI monthly average values for the Lena Delta tundra landscape. From the data it can be seen that the MODIS NDVI can be used at the spatial-scale level of the landscape scale to distinguish the different terraces, but with view to small spatial-scale caution is needed (e.g. working with single pixel values).

Parameter(s):

#	Name	Short Name	Principal Investigator	Method/Device	Comment
1	Event label	Event	Heim, Birgit
2	DATE/TIME	Date/Time	Heim, Birgit		Geocode
3	Normalized Differenced Vegetation Index, mean	NDVI mean	Heim, Birgit	Calculated
4	Normalized Differenced Vegetation Index, median	NDVI median	Heim, Birgit	Calculated
5	Normalized Differenced Vegetation Index, max	NDVI min	Heim, Birgit	Calculated
6	Normalized Differenced Vegetation Index, min	NDVI max	Heim, Birgit	Calculated

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

180 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Date/Time	3 NDVI mean	4 NDVI median	5 NDVI min	6 NDVI max
LD-T1	2009-06	0.59	0.59	0.61	0.57
LD-T1	2009-07	0.60	0.60	0.63	0.57
LD-T1	2009-08	0.58	0.58	0.61	0.53
LD-T1	2010-06	0.60	0.60	0.63	0.59
LD-T1	2010-07	0.63	0.63	0.64	0.62
LD-T1	2010-08	0.60	0.60	0.61	0.59
LD-T1	2011-06	0.48	0.48	0.51	0.44
LD-T1	2011-07	0.63	0.63	0.65	0.61
LD-T1	2011-08	0.64	0.63	0.67	0.56
LD-T1	2012-06	0.57	0.57	0.64	0.49
LD-T1	2012-07	0.64	0.63	0.66	0.62
LD-T1	2012-08	0.61	0.62	0.64	0.59
LD-T1	2013-06	0.47	0.46	0.52	0.43
LD-T1	2013-07	0.58	0.58	0.65	0.54
LD-T1	2013-08	0.61	0.61	0.65	0.58
LD-T2	2009-06	0.43	0.43	0.45	0.42
LD-T2	2009-07	0.43	0.43	0.46	0.41
LD-T2	2009-08	0.44	0.42	0.52	0.39
LD-T2	2010-06	0.43	0.43	0.44	0.41
LD-T2	2010-07	0.50	0.49	0.53	0.48
LD-T2	2010-08	0.51	0.51	0.57	0.46
LD-T2	2011-06	0.44	0.46	0.48	0.38
LD-T2	2011-07	0.45	0.46	0.47	0.43
LD-T2	2011-08	0.51	0.52	0.55	0.46
LD-T2	2012-06	0.49	0.50	0.53	0.41
LD-T2	2012-07	0.48	0.48	0.52	0.45
LD-T2	2012-08	0.46	0.47	0.47	0.43
LD-T2	2013-06	0.41	0.41	0.48	0.36
LD-T2	2013-07	0.45	0.44	0.50	0.41
LD-T2	2013-08	0.47	0.47	0.49	0.43
LD-T3	2009-06	0.44	0.44	0.47	0.41
LD-T3	2009-07	0.51	0.51	0.56	0.49
LD-T3	2009-08	0.55	0.54	0.59	0.52
LD-T3	2010-06	0.60	0.61	0.67	0.53
LD-T3	2010-07	0.60	0.58	0.71	0.54
LD-T3	2010-08	0.57	0.57	0.62	0.55
LD-T3	2011-06	0.50	0.50	0.54	0.47
LD-T3	2011-07	0.56	0.55	0.59	0.53
LD-T3	2011-08	0.57	0.57	0.63	0.54
LD-T3	2012-06	0.49	0.51	0.52	0.44
LD-T3	2012-07	0.60	0.58	0.65	0.55
LD-T3	2012-08	0.59	0.58	0.66	0.54
LD-T3	2013-06	0.39	0.37	0.46	0.36
LD-T3	2013-07	0.64	0.62	0.71	0.59
LD-T3	2013-08	0.59	0.59	0.67	0.50