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National Wetlands Research Center Marsh Dieback Syndrome (MaDS) Signature Key

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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.

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National Wetlands Research Center Impacted by Brown Marsh: IEM BM2 USBM USDM IUS 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

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National Wetlands Research Center Non-Impacted BACK

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Impacted National Wetlands Research Center BACK

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Classification Modifiers National Wetlands Research Center BACK

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EM example (Aerial Photography) EM example (Oblique Photo) EM example (Ground Photo) EM Emergent Marsh BACK National Wetlands Research Center

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EM_CIR BACK

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EM_OBL BACK

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EM_GRD BACK

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SS1 example (Aerial Photography) SS1 example (Oblique Photo) SSg example (Aerial Photography) SSg example (Oblique Photo) SSg example (Ground Photo) SS Scrub Shrub BACK National Wetlands Research Center

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SS1_CIR BACK

Slide13: 

SS1_OBL BACK

Slide14: 

SSg_CIR BACK

Slide15: 

SSg_OBL BACK

Slide16: 

SSg_GRD BACK

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FO1 example (Aerial Photography) FO1 example (Oblique Photo) FO1 example (Ground Photo) FO Forest BACK National Wetlands Research Center

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FO1_CIR BACK

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FO1_OBL BACK

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FO1_GRD BACK

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AB Aquatic Bed BACK National Wetlands Research Center

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OW example (Oblique Photo) OW example (Ground Photo) OWx example (Oblique Photo) OW Open Water BACK National Wetlands Research Center

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OW_OBL BACK

Slide24: 

OW_GRD BACK

Slide25: 

OWx_OBL BACK

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US example (Oblique Photo) US example (Ground Photo) US Unconsolidated Shore BACK National Wetlands Research Center

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US_OBL BACK

Slide28: 

US_GRD BACK

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RSk example (Ground Photo) RS Rocky Shore BACK National Wetlands Research Center

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RSk_GRD BACK

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USS1 example (Ground Photo) USS Upland Scrub Shrub BACK National Wetlands Research Center

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USS1_GRD BACK

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UF1 example (Aerial Photography) UF1 example (Oblique Photo) UF1 example (Ground Photo) UF Upland Forest BACK National Wetlands Research Center

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UF1_CIR BACK

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UF1_OBL BACK

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UF1_GRD BACK

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UR example (Aerial Photography) UR example (Ground Photo) UR Upland Range BACK National Wetlands Research Center

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UR_CIR BACK

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UR_GRD BACK

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UB example (Aerial Photography) UB example (Oblique Photo) UB Upland Barren BACK National Wetlands Research Center

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UB_CIR BACK

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UB_OBL BACK

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UU example (Aerial Photography) UU example (Ground Photo) UUo example (Aerial Photography) UU Upland Urban BACK National Wetlands Research Center

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UU_CIR BACK

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UU_GRD BACK

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UUo_CIR BACK

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IEM example (Aerial Photography) IEM example (Oblique Photo) IEM example (Ground Photo) IEM Slightly impacted emergent marsh vegetation. BACK National Wetlands Research Center

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IEM_CIR BACK

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IEM_OBL BACK

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IEM_GRD BACK

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BM2 example (Aerial Photography) BM2 example (Oblique Photo) BM2 example (Ground Photo) BM2 Moderately impacted emergent marsh with intact vegetation signature. BACK National Wetlands Research Center

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BM2_CIR BACK

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BM2 _OBL BACK

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BM2 _GRD BACK

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USBM example (Aerial Photography) USBM example (Oblique Photo) USBM example (Ground Photo) USBM Unconsolidated shore/severely impacted emergent marsh. BACK National Wetlands Research Center

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USBM_CIR BACK

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USBM_OBL BACK

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USBM_GRD BACK

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USDM example (Aerial Photography) USDM example (Oblique Photo) USDM example (Ground Photo) USDM Unconsolidated shore/dead emergent marsh. BACK National Wetlands Research Center

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USDM_CIR BACK

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USDM_OBL BACK

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USDM_GRD BACK

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IUS example (Aerial Photography) IUS example (Oblique Photo) IUS example (Ground Photo) IUS Impacted, unconsolidated shore. BACK National Wetlands Research Center

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IUS_CIR BACK

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IUS_OBL BACK

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IUS_GRD BACK

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IOW Impacted open water. BACK National Wetlands Research Center

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IAB example (Ground Photo) IAB Impacted aquatic bed. BACK National Wetlands Research Center

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IAB_GRD BACK

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