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Agricultural, Water, and Health-Related Satellite Products from NESDIS-STAR. Felix Kogan NOAA/NESDIS Center for Satellite Applications and Research. October 2010. AVHRR Data for Land Use. Sensor: Advanced Very High Resolution Radiometer (AVHRR).

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agricultural water and health related satellite products from nesdis star

Agricultural, Water, and Health-Related Satellite Products from NESDIS-STAR

Felix Kogan

NOAA/NESDIS

Center for Satellite Applications and Research

October 2010

avhrr data for land use
AVHRR Data for Land Use

Sensor: Advanced Very High Resolution Radiometer (AVHRR)

Satellites: NOAA-7, 9, 11, 14, 16, 17 (morn.),18, 19

Data Resolution:Spatial - 4 km (GAC), 8 & 16 km; Temporal - 7-day composite

Period: 30-year(1981-2010)

Coverage:World (75 N to 55 S)

Channels: VIS (ch1), NIR (ch2), Thermal (ch4, ch5)

theory crops reflectance citrus tomatoes sorghum cotton
THEORYCrops’ Reflectance (Citrus, Tomatoes, Sorghum, Cotton)

NIR reflectance depends on

WATER CONTENT

CELL STRUCTURE

VIS reflectance depends on

CHLOROPHYLL

CAROTENOID

ndvi reflectance
NDVI & Reflectance

NDVI= (Ch2-Ch1)/(Ch2+Ch1)

ndvi smoothed ndvi
NDVI & Smoothed NDVI

Eliminate high frequency noise

Emphasize seasonal cycle

Separate medium & low frequency variations

avhrr products
AVHRR PRODUCTS

Vegetation condition index (VCI), values 0 - 100

VCI=(NDVI-NDVImin)/(NDVImax-NDVImin)

NDVImax, and NDVImin – climatology (1981-2000 maximum and minimum NDVI for a pixel;

Temperature condition index (TCI), values 0 - 100

TCI=(BTmax-BTmin)/(BTmax-BTmin)

NDVImax, and NDVImin – climatology (1981-2000 maximum and minimum NDVI for a pixel

Vegetation Health Index (VHI), values 0 – 100

VHI=a*VCI+(1-a)*TCI

0 – indicates extreme stress

100 – indicates favorable conditions

MOISTURE

THERMAL

VEG. HEALTH

drought 1988 usa june 28
Drought 1988, USAJune 28

Severe Moisture and Thermal Vegetation Stress

wheat density vs vci
Wheat Density vs VCI

1991 1992

May Jun Jul Aug Sep May Jun Jul Aug Sep

sep 30 2010 vci vs soil moisture ukraine
Sep 30, 2010: VCI vs Soil MoistureUKRAINE

VCI

0-20 cm

Soil Moisture Anomaly

corn yield vs vci midwest usa
Corn Yield vs VCIMidwest, USA

Corn Yield - normalized for Midwestern CRD

VCI – mean for CRD

vh and crop yield
VH and Crop Yield

MOROCCO -Wheat

R

U

S

S

I

A

A

R

G

E

N

T

I

N

A

MONGOLIA - Pasture

Kansas, USA

correlation of wheat yield anomaly with vh indices precipitation temperature anomaly saratov russia
Correlation of Wheat Yield anomaly with VH Indices, Precipitation & Temperature anomalySaratov, RUSSIA

Yield

dYvsVHI,VCI&TCI

dYvsdP

dYvsdT

vegetation health and agriculture ukraine
Vegetation Health and Agriculture, UKRAINE

2002 & 2004 – NOAA-16 satellite identify good vegetation health (green) resulted in high yield 2.75 & 2.84 t/ha

t/ha

2.7

2003 – Intensive Drought (red) caused 35% losses in grain yield (1.84 t/ha) versus the years before and after

1.8

ADDRESS:

- Ecosystem Health

- Agriculture

- Food Security

2.8

PLAN

Use NOAA/AVHRR Data 4 km resolution

2007 drought dynamics focus on southern russia ukraine from noaa 18 vegetation health index vhi
2007 Drought Dynamics: Focus on Southern RUSSIA & UKRAINE from NOAA-18 Vegetation Health Index (VHI)

Beloruss

Russia

UKRAINE

Rumania

Bulgaria

Georgia

Turkey

Syria

Iraq

  • Vegetation Health (red) deteriorated from April through the end of the growing season, especially in the main areas of winter wheat
  • VHI is derived from NOAA/AVHRR data and estimates greenness, vigor and thermal conditions of vegetation
slide24
JUNE

www.rsindexbasedcropinsurance2010.com

vegetation stress june 2008
Vegetation stress, June, 2008

DROUHGT-red

Soil Saturation- white

area from a state of saturated and flooded soil midwestern states usa 2008
Area (% from a state) of saturated and flooded soilMidwestern states, USA, 2008

%

MAY JUNE

MAY JUNE

1 15 31 1 15

Week

slide36
Web

http://www.orbit.nesdis.noaa.gov/smcd/emb/vci

wheat yield russia
Wheat Yield RUSSIA

Russia produces 65% WW & 35% SW

  • Figure shows dynamics of Vegetation health (VH)
  • 2007 WW analogue was 2001 VH
  • WW yield is expected at or 1-3% below LTT or 1.9 t/ha
  • Figure shows dynamics of Vegetation health (VH)
  • 2007 SW analogue was 2001 VH
  • SW yield is expected 5-7% above long-term trend (LTT)

Total wheat is expected at or slightly below LTT (1.96 t/ha)

mean moisture vci thermal tci conditions for the major crop growing area of brazil 2010
Mean Moisture (VCI) & Thermal (TCI) conditions for the major crop growing area of BRAZIL, 2010
ndvi 2010 week 40
NDVI 2010 week 40

GVI-x

N18

MGVI

N19

Difference

bt4 2010 week 40
BT4 2010 week 40

MGVI

N18

MGVI

N19

Difference

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