Monitoring Water Use and Drought using Satellite Remote Sensing

Martha C. AndersonUSDA-ARSHydrology and Remote Sensing LaboratoryBeltsville, MD

DisA

LEXI

(Lan

dsat

)Di

sALE

XI(a

ircra

ft)W

atershed(60m

)Field scale

(30m)

SURFACE TEMPERATURE EVAPOTRANSPIRATION

ALEX

I(G

OES

Imag

er) Regional

(5km)

ALEX

I(G

OES

Sou

nder

) Continental(10km

)

Tem

pera

ture

(C)

DisA

LEXI

(MO

DIS) Basin

(1km)

Latent Heat (Wm

-2)

ALEX

I(IS

CCP)

Global(25km

)

1 July 2002 – 10:30AM LST

cornsoy

ETPET0.0 0.2 0.4 0.6 0.8 1.0

Landsat 7 – 60m MODIS – 1km

Sensitivity to irrigation

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

Wetter

Drier Standardized anomalies

(April-S

ept. wrt 2000-2011 norm

als)

-2s

-1

0

1

2s

EVAPORATIVE STRESS INDEXDUSDM DSPI-3ESI DETnoahDSMnoah

2010

2011

USDM

D0 D1 D2 D3 D4

USDM drought classes

… Nile River BasinINTERNATIONAL APPLICATIONS

2009 APRIL-SEPTEMBER

Average ALEXI ET (MJ m-2 d-1) Average ALEXI ET/PET

Average ALEXI ET/PET

NileDelta

Sudd Wetland

ESI6 months

(July 2011)

HyspIRI(60m/5 day)

CLIMATE RESILIENCE STUDY:CHOKE MOUNTAINEthiopia

Landsat(100m/16 day)

MODIS(1km/daily)

Meteosat(3km/15min)

(Addis Ababa, JHU, UWisc, USDA)

August 2004Midday latent heat flux (clear-sky composite)

POTENTIAL CONTRIBUTIONS TO WORLD BANK

Martha.Anderson@ars.usda.gov

USDA is an equal opportunity provider and employer.

… multi-scale water-use mapping… drought monitoring… information for improving climate resilience