Chlorophyll fronts - Where can I find a remote sensing product (Copernicus, NASA...) with already processed chlorophyll data to determine fronts?

More Tobias Büring's questions See All

Do you know any research on the evolution of educational programming languages?

Hi, as part of my bachelor thesis on the design of programming languages for teaching mathematics in the 21st century, I have planned to discuss the evolution of (the) major programing languages...

02 August 2020 7,922 6 View

How to control the optimization step size in Gaussian?

I would like to perform a geometry optimization for a weakly bound methane dimer structure with Gaussian 16. During this process, the Newton-Raphson step size should be controlled such that its...

09 July 2020 1,956 2 View

Do you know of any true, simulated, or synthesized hexagonal lattice format based [image] data sets?

- E.g., Cherenkov Telescope Array (CTA) images.

24 March 2020 5,221 4 View

How do you identify the complete added mass matrix of a ship using experimental data?

I am looking for a purely experimental method to determine the mass matrix of a ship in three degrees of freedom using manoeuvres in open water. I just found: Skjetne, Smogeli, Fossen: The...

23 March 2020 814 1 View

Statistical test to find out the influence of environmental factors on fish migration numbers?

Hello, I have collected the numbers of migrating fish (round 25 species) for the last 3,5 years every day. I have also collected environmental data like water temperature, water flow, moon phase...

02 January 2020 7,774 4 View

How to deal with non-detects in CT data when performing Delta Delta CT Method?

Input: - RT QPCR dataset row CT values interpolate corrected - 50 target genes - 10 reference genes - 3 different treatments with 3 replicates each - 1 control with 3 replicates Objective: -...

19 August 2019 1,528 3 View

DSC using total enthalpy method - enthalpy of 100% crystalline sample?

Hello, to get an exact result for crystallinity of polymers I want to use the total enthalpy method suggested by Kong and Hay. For doing so one has to calculate the enthalpy of fusion of the 100%...

08 August 2019 9,532 6 View

In time series data, is it sensible to compare the AUC of the extrapolated baseline and observed post-intervention outcomes?

I am (prospectively) evaluating a NHS health board wide quality improvement initiative aiming to reduce exposure to high-risk prescribing. I am expecting a time lag in the intervention effect, but...

26 February 2019 8,944 2 View

Is there a recommendable article dealing with winsorizing outliers in SPSS?

I would like to winsorize outliers SPSS instead of trimming them. Therefore I am looking for an article that introduces to the method of winsorizing. Thank you for your time!

18 January 2019 973 3 View

How to check if an internal coordinate is totally symmetric with the help of the molecular structure?

I would like to decide whether a given internal coordinate (angle or dihedral angle) is totally symmetric, i.e., E(y1,y2,...,yi+delta,y[3N-5/6])=E(y1,y2,...,yi-delta,y[3N-5/6]) for any delta,...

14 January 2019 2,894 3 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Does anyone know how to plot my station to a section plot on Ocean Data View (ODV)?

I made a vertical section plot with WOA .nc file on ODV, and now I want to plot my stations (csv. file) in it. Does anyone know how to import my points to the section? They are two different...

01 March 2021 3,610 1 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

Satellite orbit estimation using Recurrent Neural Network - what should I use?

Hello, I am a master's student studying in Yonsei Univeristy, Korea. I am trying to estimate the state of satellite, using Neural Network. Below is a simple flow of my study. 1. Train (t0 ~ t1)...

23 February 2021 6,383 3 View

Bayesian decision trees and bayesian regression trees in Python and/or R?

I am looking for implementation of bayesian decision trees and bayesian regression trees in Python and/or R.. Do you know if the existing libraries support this

23 February 2021 6,689 3 View

In frequency domain alpha band(8-16hz), beta band(16-32hz), gamma band(32-64hz), sub-band(64-128hz) are same as LL,LH,HL,HH in wavelet decomposition?

I am working on single trial motor imagery data i.e. EEG data. I am following a paper which has a dataset from BCI challenge IV (dataset 2b). After removing noise and extracting all the data from...

23 February 2021 5,503 1 View

Can you mention any source which presents an updates forest-fire hazard or vulnerability map of North-East India?

There exists a confusion of generating fire-hazard maps with MODIS data as that way, we cannot distinguish between shifting agriculture and wildfires. I am looking for a source that provides me...

22 February 2021 9,616 2 View

Are there packages (R or Python) for simple models (bucket?) to assess soil water content?

Hi everyone. I am researching droguht effects on soil water drought. I am looking for already implemented functions in R or Python to estimate soil water content from precipitation,...

21 February 2021 2,084 1 View

Aahed Alhamamy

Tobias Büring

Hi ,

t seems like you are looking for remote sensing products that provide already processed chlorophyll data to determine oceanographic fronts, specifically for the Patagonian Shelf area.

I can provide you with some guidance on how to approach this.

Copernicus Marine Environment Monitoring Service (CMEMS): The Copernicus program offers various remote sensing products, including ocean color data (which includes chlorophyll-a concentration). You can access these data through the CMEMS website. They provide netCDF files that contain ocean color data that you can use to analyze chlorophyll concentrations and potentially identify fronts.

NASA Earthdata: NASA provides a wealth of remote sensing data, including ocean color data from satellites like MODIS. You can use tools like NASA's Giovanni to access and analyze these data. It might require some processing on your part to detect fronts based on the chlorophyll data.

Algorithm Implementation: If you can't find an existing product for the Patagonian Shelf area, you might need to implement the algorithm yourself. The algorithm proposed by Belkin and O'Reilly can be programmed in a language like R. You would need processed Level 4 chlorophyll data, which can be obtained from sources like NASA or Copernicus. You'd then follow the algorithm's steps to detect oceanographic fronts in the region of interest.

Remember that implementing such an algorithm could be complex, and the success of the algorithm might depend on the quality of the data and the specifics of the region you're interested in.

Front detection algorithms often involve intricate analysis techniques that might require expertise in oceanography and remote sensing.

Please recommend my reply if you find it useful.Thanks

I found the R package "grec" which provides the front detection algorithm. Furthermore, the "imagine" package offers the contextualMF function (contextual median filter)

Md Nazmul Hasan

You can access remote sensing products for chlorophyll data from organizations like NASA's OceanColor or Copernicus Marine Environment Monitoring Service, which provide pre-processed data for detecting chlorophyll fronts in ocean ecosystems.