Introduction

For Latest Updates link to:
http://www.dnr.state.mn.us/news/releases
http://inciweb.org/incident/660/
http://www.mnics.org/Incidents/fire_1.shtml

 

Ham Lake Fire INCIDENT UPDATED: 2007-05-17 14:21:35 ET

 
Ham Lake Fire Credit: Great Basin IMT

Basic Information
Cause Under Investigation 
Date of Origin 05/05/2007 at 1130 hrs. 
Location NW of Ham Lake near the Gunflint Trail 
Incident Commander Paul Broyles
Incident Type Wildland Fire 
 
Cause Under Investigation 
Date of Origin 05/05/2007 at 1130 hrs. 
Location NW of Ham Lake near the Gunflint Trail 
Incident Commander Paul Broyles 

Current Situation
Total Personnel 785 
Size 75,851 acres 
Percent Contained 35% 
Estimated Containment Date 05/20/2007 at hrs.

-->>details

False Color Images

These images are composed with MODIS Terra/Aqua L1B radiance bands 1,2, and 7.

by EastFIRE Lab

 

True Color Images

We build true color images using MODIS band 1 (250m), band 4 (500m) and band 3 (500m). Standard atmospheric corrections are performed for generating the true color image.

by EastFIRE Lab

 

 

Drought Index

NMDI (Normalized Multiband Drought Iindex) is designed by EastFIRE lab. Cloud masks will be used later to remove the clouds.

 

Smoke Map

 

Active Fire Map

The MODIS contextual algorithm is used to generate these active fire maps.

 

Near Real-time Fire Danger Index

We are currently evaluating a normalized difference index using MODIS bands 7 and 2 for fire danger estimation. Band 7 in SWIR, being a water absorption band is sensitive to fuel moisture content. Band 2 in NIR is not very sensitive to fuel moisture. The following index may be useful for fire danger rates

FDI= (Band2-Band7)/(Band2+Band7)

 

Near Real-time Aerosol Optical Depth

Near Real-time Vegetation indices--NDVI

 

Surface Temperature

Fuel Moisture

Soil Moisture

Soil moisture is one of the key parameters controlling the exchange of water and heat energy between land surfaces and atmosphere. It is also an important indicator for monitoring flood, drought and fire danger potential. Combining optical/IR observations with accurate ground measurements of soil moisture can produce daily, fine resolution soil moisture information. It is known that the daily Normalized Difference Vegetation Index (NDVI) data product and Land Surface Temperature (LST) are related to surface soil moisture, therefore, relationships among ground measurements of soil moisture and land surface NDVI and LST products have been developed. These regression relations, in conjunction with MODIS NDVI and LST, are then used to generate soil moisture information in areas where there are no ground station data.

 

 

 

 

 

 

Comments and Suggestions
Updated: May 17, 2007
Copyright@2005 EastFIRE Lab, CEOSR, George Mason University