# Presentation: 635011

## Marsh Dieback Syndrome (MaDS) Signature Key

**National Wetlands Research Center**

**Marsh Dieback Syndrome (MaDS) Signature Key**

## Marsh Dieback Syndrome (MaDS) Signature Key

**National Wetlands Research Center**

**Marsh Dieback Syndrome (MaDS) Signature Key**
**The objective of this signature key is to provide a consistent method for photointerpreters to delineate important features of healthy and affected marsh. This key will assist the user in understanding marsh classification using high-altitude color infrared photography as applied to the Marsh Dieback Syndrome.**
**The process of developing a key iterates between field observations and laboratory analysis of the photography. Ground level field observations were carried-out primarily during the winter of 2001 with additional observations made at other times.  Ongoing oblique, low-altitude monthly aerial observations have been conducted continuously since the summer of 2000.  Whenever possible, the photos in this signature key refer to the same dates and locations in order to provide consistency across the scale of photography.**

## Marsh Dieback Syndrome (MaDS) Signature Key

**National Wetlands Research Center**

- _[Impacted by Brown Marsh:](slide5.xml)_

- _[IEM](slide47.xml)_

- _[BM2](slide51.xml)_

- _[USBM](slide55.xml)_

- _[USDM](slide59.xml)_

- _[IUS](slide63.xml)_

- IOW

- IAB

- Non-impacted Areas:

- US

- OW

- AB

- EM

- SS

- FO

- RS

- Upland

- UB

- UR

- USS

- UF

- UU

- Modifiers:

- x

- s

- h

- o

- k

- SS3

- SS4

- SSg

- SS1

- FO1

- FO3

- FO4

- USS3

- USS4

- USS1

- UF3

- UF4

- UF1

- Wetland

**Marsh Dieback Syndrome (MaDS) Signature Key**

- BACK TO INTRODUCTION

## Non-Impacted

**National Wetlands Research Center**

**Non-Impacted**

- _[BACK](slide3.xml)_

## Impacted

**Impacted**

**National Wetlands Research Center**

- _[BACK](slide3.xml)_

## Classification Modifiers

**Classification Modifiers**

**National Wetlands Research Center**

- _[BACK](slide3.xml)_

## EM Emergent Marsh

- _[EM example (Aerial Photography)](slide8.xml)_
- _[EM example (Oblique Photo)](slide9.xml)_
- _[EM example (Ground Photo)](slide10.xml)_

**EM Emergent Marsh**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## EM_CIR

- _[BACK](slide7.xml)_

## EM_OBL

- _[BACK](slide7.xml)_

## EM_GRD

- _[BACK](slide7.xml)_

## SS Scrub Shrub

- _[SS1 example (Aerial Photography)](slide12.xml)_
- _[SS1 example (Oblique Photo)](slide13.xml)_
- _[SSg example (Aerial Photography)](slide14.xml)_
- SSg example (Oblique Photo)
- SSg example (Ground Photo)

**SS Scrub Shrub**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## SS1_CIR

- _[BACK](slide11.xml)_

## SS1_OBL

- _[BACK](slide11.xml)_

## SSg_CIR

- _[BACK](slide11.xml)_

## SSg_OBL

- _[BACK](slide11.xml)_

## SSg_GRD

- _[BACK](slide11.xml)_

## FO Forest

- _[FO1 example (Aerial Photography)](slide18.xml)_
- _[FO1 example (Oblique Photo)](slide19.xml)_
- _[FO1 example (Ground Photo)](slide20.xml)_

**FO Forest**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## FO1_CIR

- _[BACK](slide17.xml)_

## FO1_OBL

- _[BACK](slide17.xml)_

## FO1_GRD

- _[BACK](slide17.xml)_

## AB Aquatic Bed

**AB Aquatic Bed**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## OW Open Water

- _[OW example (Oblique Photo)](slide23.xml)_
- _[OW example (Ground Photo)](slide24.xml)_
- OWx example (Oblique Photo)

**OW Open Water**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## OW_OBL

- _[BACK](slide22.xml)_

## OW_GRD

- _[BACK](slide22.xml)_

## OWx_OBL

- BACK

## US Unconsolidated Shore

- _[US example (Oblique Photo)](slide27.xml)_
- _[US example (Ground Photo)](slide28.xml)_

**US Unconsolidated Shore**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## US_OBL

- _[BACK](slide26.xml)_

## US_GRD

- _[BACK](slide26.xml)_

## RS Rocky Shore

- _[RSk example (Ground Photo)](slide30.xml)_

**RS Rocky Shore**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## RSk_GRD

- _[BACK](slide29.xml)_

## USS Upland Scrub Shrub

- _[USS1 example (Ground Photo)](slide32.xml)_

**USS Upland Scrub Shrub**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## USS1_GRD

- _[BACK](slide31.xml)_

## UF Upland Forest

- _[UF1 example (Aerial Photography)](slide34.xml)_
- _[UF1 example (Oblique Photo)](slide35.xml)_
- UF1 example (Ground Photo)

**UF Upland Forest**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## UF1_CIR

- _[BACK](slide33.xml)_

## UF1_OBL

- _[BACK](slide33.xml)_

## UF1_GRD

- BACK

## UR Upland Range

- _[UR example (Aerial Photography)](slide38.xml)_
- _[UR example (Ground Photo)](slide39.xml)_

**UR Upland Range**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## UR_CIR

- _[BACK](slide37.xml)_

## UR_GRD

- _[BACK](slide37.xml)_

## UB Upland Barren

- _[UB example (Aerial Photography)](slide41.xml)_
- _[UB example (Oblique Photo)](slide42.xml)_

**UB Upland Barren**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## UB_CIR

- _[BACK](slide40.xml)_

## UB_OBL

- _[BACK](slide40.xml)_

## UU Upland Urban

- _[UU example (Aerial Photography)](slide44.xml)_
- _[UU example (Ground Photo)](slide45.xml)_
- UUo example (Aerial Photography)

**UU Upland Urban**

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## UU_CIR

- _[BACK](slide43.xml)_

## UU_GRD

- _[BACK](slide43.xml)_

## UUo_CIR

- BACK

## IEM Slightly impacted emergent marsh vegetation. 

- IEM example (Aerial Photography)
- _[IEM example (Oblique Photo)](slide49.xml)_
- _[IEM example (Ground Photo)](slide50.xml)_

- IEM Slightly impacted emergent marsh vegetation.

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## IEM_CIR

- _[BACK](slide47.xml)_

## IEM_OBL

- _[BACK](slide47.xml)_

## IEM_GRD

- _[BACK](slide47.xml)_

## BM2 Moderately impacted emergent marsh with intact vegetation signature. 

- _[BM2 example (Aerial Photography)](slide52.xml)_
- _[BM2 example (Oblique Photo)](slide53.xml)_
- _[BM2 example (Ground Photo)](slide54.xml)_

- BM2 Moderately impacted emergent marsh with intact vegetation signature.

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## BM2_CIR

- _[BACK](slide51.xml)_

## BM2 _OBL

- _[BACK](slide51.xml)_

## BM2 _GRD

- _[BACK](slide51.xml)_

## USBM	 Unconsolidated shore/severely impacted emergent marsh.

- _[USBM example (Aerial Photography)](slide56.xml)_
- _[USBM example (Oblique Photo)](slide57.xml)_
- _[USBM example (Ground Photo)](slide58.xml)_

- USBM	 Unconsolidated shore/severely impacted emergent marsh.

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## USBM_CIR

- _[BACK](slide55.xml)_

## USBM_OBL

- _[BACK](slide55.xml)_

## USBM_GRD

- _[BACK](slide55.xml)_

## USDM	 Unconsolidated shore/dead emergent marsh. 

- _[USDM example (Aerial Photography)](slide60.xml)_
- _[USDM example (Oblique Photo)](slide61.xml)_
- _[USDM example (Ground Photo)](slide62.xml)_

- USDM	 Unconsolidated shore/dead emergent marsh.

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## USDM_CIR

- _[BACK](slide59.xml)_

## USDM_OBL

- _[BACK](slide59.xml)_

## USDM_GRD

- _[BACK](slide59.xml)_

## IUS Impacted, unconsolidated shore. 

- _[IUS example (Aerial Photography)](slide64.xml)_
- _[IUS example (Oblique Photo)](slide65.xml)_
- _[IUS example (Ground Photo)](slide66.xml)_

- IUS Impacted, unconsolidated shore.

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## IUS_CIR

- _[BACK](slide63.xml)_

## IUS_OBL

- _[BACK](slide63.xml)_

## IUS_GRD

- _[BACK](slide63.xml)_

## IOW Impacted open water. 

- IOW Impacted open water.

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## IAB Impacted aquatic bed. 

- _[IAB example (Ground Photo)](slide69.xml)_

- IAB Impacted aquatic bed.

- _[BACK](slide3.xml)_

**National Wetlands Research Center**

## IAB_GRD

- _[BACK](slide68.xml)_