PMID- 30302319
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20230928
IS  - 2215-0161 (Print)
IS  - 2215-0161 (Electronic)
IS  - 2215-0161 (Linking)
VI  - 5
DP  - 2018
TI  - An index for discrimination of mangroves from non-mangroves using LANDSAT 8 OLI 
      imagery.
PG  - 1129-1139
LID - 10.1016/j.mex.2018.09.011 [doi]
AB  - Over the last few decades several vegetation indices were used to map Mangrove 
      forest using satellite images. Difficulty still persists in discrimination of 
      mangroves from non-mangrove vegetation, especially in areas where mangrove 
      species are mixed with other vegetation types. In the present study we have 
      attempted to develop an improved index, which utilizes the information from the 
      Normalized Difference Vegetation Index (NDVI) and the Normalized Difference Water 
      Index (NDWI) of Bhitarkanika mangrove forest of Odisha, India. These indices are 
      negatively correlated (r = -0.988; p < 0.01). Further, the NDWI values were 
      subtracted from the NDVI values at the pixel level. As the outputs are negatively 
      related, subtraction increases the upper and lower range of the overall output, 
      also increasing the distinct values of two classes with near-similar spectral 
      signatures. Same algorithm was applied on mangroves of Sundarbans (r = -0.987) 
      and Andaman (r = -0.989). A comparison between four established indices [NDVI, 
      NDWI, Soil Adjusted Vegetation Index (SAVI), Simple Ratio (SR)] and the newly 
      developed index namely Combined Mangrove Recognition Index (CMRI) were performed. 
      Accuracy assessment using Kappa statistics, revealing that CMRI produces better 
      accuracy (73.43%) compared to other indices, followed by NDVI (56.29%) and SR 
      (48.79%).
FAU - Gupta, Kaushik
AU  - Gupta K
AD  - School of Oceanographic Studies, Jadavpur University, 188 Raja S. C. Mullick 
      Road, Kolkata 700032, West Bengal, India.
FAU - Mukhopadhyay, Anirban
AU  - Mukhopadhyay A
AD  - School of Oceanographic Studies, Jadavpur University, 188 Raja S. C. Mullick 
      Road, Kolkata 700032, West Bengal, India.
FAU - Giri, Sandip
AU  - Giri S
AD  - School of Oceanographic Studies, Jadavpur University, 188 Raja S. C. Mullick 
      Road, Kolkata 700032, West Bengal, India.
FAU - Chanda, Abhra
AU  - Chanda A
AD  - School of Oceanographic Studies, Jadavpur University, 188 Raja S. C. Mullick 
      Road, Kolkata 700032, West Bengal, India.
FAU - Datta Majumdar, Sayani
AU  - Datta Majumdar S
AD  - School of Oceanographic Studies, Jadavpur University, 188 Raja S. C. Mullick 
      Road, Kolkata 700032, West Bengal, India.
FAU - Samanta, Sourav
AU  - Samanta S
AD  - School of Oceanographic Studies, Jadavpur University, 188 Raja S. C. Mullick 
      Road, Kolkata 700032, West Bengal, India.
FAU - Mitra, Debasish
AU  - Mitra D
AD  - Indian Institute of Remote sensing, Dehradun, 4, Kalidas Road, Uttarakhand, 
      India.
FAU - Samal, Rabindro N
AU  - Samal RN
AD  - Chilika Development Authority, Bhubaneswar, Odisha, India.
FAU - Pattnaik, Ajit K
AU  - Pattnaik AK
AD  - Chilika Development Authority, Bhubaneswar, Odisha, India.
FAU - Hazra, Sugata
AU  - Hazra S
AD  - School of Oceanographic Studies, Jadavpur University, 188 Raja S. C. Mullick 
      Road, Kolkata 700032, West Bengal, India.
LA  - eng
PT  - Journal Article
DEP - 20180928
PL  - Netherlands
TA  - MethodsX
JT  - MethodsX
JID - 101639829
PMC - PMC6174272
OTO - NOTNLM
OT  - CMRI
OT  - Combined Mangrove Recognition Index (CMRI)
OT  - Mangrove discrimination
OT  - NDVI
OT  - NDWI
OT  - SAVI
OT  - SR
EDAT- 2018/10/12 06:00
MHDA- 2018/10/12 06:01
PMCR- 2018/09/28
CRDT- 2018/10/11 06:00
PHST- 2018/05/22 00:00 [received]
PHST- 2018/09/18 00:00 [accepted]
PHST- 2018/10/11 06:00 [entrez]
PHST- 2018/10/12 06:00 [pubmed]
PHST- 2018/10/12 06:01 [medline]
PHST- 2018/09/28 00:00 [pmc-release]
AID - S2215-0161(18)30153-5 [pii]
AID - 10.1016/j.mex.2018.09.011 [doi]
PST - epublish
SO  - MethodsX. 2018 Sep 28;5:1129-1139. doi: 10.1016/j.mex.2018.09.011. eCollection 
      2018.