DUNHUANG

Location

lon / lat [deg]: 94.794 / 40.0384

Source network: AERONET

Geostationary surface albedo (GSA) data

“+000”

“+057/+063”

Landcover information (based on ESA CCI landcover data)

Landcover fractions @ 2km distance

Landcover fractions @ 20 km distance

Legend

Distance to open water bodies [km]:	19.64
Distance to urban areas [km]:	13.0

Radius: 1 km

Number of landcover classes:	3
Dominant landcover type:	200: bare areas
Fraction of dominant landcover type [%]:	67.0

Radius: 2 km

Number of landcover classes:	3
Dominant landcover type:	200: bare areas
Fraction of dominant landcover type [%]:	61.0

Radius: 5 km

Number of landcover classes:	2
Dominant landcover type:	200: bare areas
Fraction of dominant landcover type [%]:	52.0

Radius: 10 km

Number of landcover classes:	4
Dominant landcover type:	130: grassland
Fraction of dominant landcover type [%]:	50.0

Radius: 20 km

Number of landcover classes:	7
Dominant landcover type:	200: bare areas
Fraction of dominant landcover type [%]:	44.0

Disturbances

Heterogeneity analysis

The heterogeneity analysis provides information about the spatial and temporal heterogeneity of the site.

Topography

Roman et al. (2009) index
St	2.95789384555
Rcv	0.523527367842
Rse	0.0
Rst	-9.50693851985e-08
Rsv	-0.490707718151

Height range @ 1km [m]	68
Height range @ 2km [m]	182
Height range @ 5km [m]	329
Height range @ 10km [m]	-999
Height range @ 20km [m]	-999

Variance slope @ 1 km	1230
Variance slope @ 2 km	1533
Variance slope @ 5 km	2418
Variance slope @ 10 km	-999
Variance slope @ 20 km	-999

NDVI (max. NDVI composite)

Roman et al. (2009) index
St	1.66338458537
Rcv	0.118490033271
Rse	0.0
Rst	-0.27706001618
Rsv	1.40800159242

NDVI range @ 1km [-]	0.01
NDVI range @ 2km [-]	0.02
NDVI range @ 5km [-]	0.02
NDVI range @ 10km [-]	0.03
NDVI range @ 20km [-]	0.47

Variance slope @ 1 km	0.000690341024988
Variance slope @ 2 km	0.000857705933782
Variance slope @ 5 km	0.0011983223053
Variance slope @ 10 km	0.00134460163322
Variance slope @ 20 km	0.00109937741529

NDVI (min. NDVI composite)I

Roman et al. (2009) index
St	5.64334685692
Rcv	0.356714240595
Rse	0.0
Rst	-0.0978232959049
Rsv	-0.0770618983858

NDVI range @ 1km [-]	0.0
NDVI range @ 2km [-]	0.01
NDVI range @ 5km [-]	0.02
NDVI range @ 10km [-]	0.02
NDVI range @ 20km [-]	0.05

NDVI slope @ 1 km	1.05505108926e-05
NDVI slope @ 2 km	1.28841419446e-05
NDVI slope @ 5 km	1.79623865402e-05
NDVI slope @ 10 km	1.78773555429e-05
NDVI slope @ 20 km	1.02975285936e-05

Temporal stability analysis

+000 deg (BHR)

BHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	None
Ordinary least square:	None

Probabilities that GCOS criteria is met:

Weighted least square:	None %
Ordinary least square:	None %

DHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	None
Ordinary least square:	None

Probabilities that GCOS criteria is met:

Weighted least square:	None %
Ordinary least square:	None %

+057/+063 deg (BHR)

BHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	-0.0204310800776
Ordinary least square:	-0.0214416585191

Probabilities that GCOS criteria is met:

Weighted least square:	3.0 %
Ordinary least square:	3.8 %

DHR statistics

Temporal stability [1/decade]:

		abs	rel
Weighted least square:	-0.0189511065364
Ordinary least square:	-0.0166517694152

Probabilities that GCOS criteria is met:

Weighted least square:	3.0 %
Ordinary least square:	3.7 %

Temporal anomaly analyis

The variance of the temporal anomalies provides an additional measure about the stability of the signal AFTER removal of the mean seasonal cylce.