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Chad Greene


NASA Jet Propulsion Laboratory

Last seen: 6 días hace Con actividad desde 2012

I am interested in the floating ice shelves that fringe East Antarctica. My current work is toward building a better understanding of how climatology influences glaciology via oceanography. I also have some experience with the acoustics of gas hydrates and oceanic methane bubbles. Homepage: www.chadagreene.com Professional Interests: Antarctic ice shelf dynamics, sea level rise, underwater acoustics, methane hydrates Note: I will not do your homework for you and I will not respond to emails directing me to a question posed on the Answers forum.

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Pregunta


R2022b does not start after Update 3
Today I opened R2022b on my Mac OS 12.6.1, and after working for a few minutes I noticed that Update 3 is available for this MAT...

29 días hace | 1 respuesta | 0

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Lambert azimuthal equal-area projections
MATLAB functions for LAEA projections.

3 meses hace | 2 descargas |

Pregunta


Opening multiple instances of MATLAB causes endless folder access errors
Whenever I try to open two instances of MATLAB, I run into an endless loop of error windows. For example, if I'm running 2022b a...

3 meses hace | 1 respuesta | 0

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Pregunta


Text in editor window suddenly vanishes in R2022b.
I've run into lots of strange behavior using R2022a and R2022b on my MacOS Monterey 12.6.1, and until now it's been mostly just ...

3 meses hace | 1 respuesta | 0

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crameri perceptually uniform scientific colormaps
Perceptually uniform scientific colormaps from Fabio Crameri.

3 meses hace | 59 descargas |

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Pregunta


Missing text objects when exporting graphics in R2022b
Since upgrading to R2022b, I've repeatedly run into an inssue in which text objects, legends, titles, etc do not get printed, or...

3 meses hace | 1 respuesta | 1

1

respuesta

Respondida
Changing the orientation Arctic Projection maps
I typically bypass the Matlab Mapping Toolbox for stereographic projections, because the functions are kind of clunky and slow. ...

3 meses hace | 0

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Extract coordinates from a geopolyshape
@Sergey Kostrukov I think I found a working solution. The m_shaperead function in M_Map can handle PolygonZ and PolyLineZ data. ...

3 meses hace | 0

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Duplicating an entire vector
You almost got it. Try repmat(A,[1 3])

3 meses hace | 0

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Pregunta


How to read modern shapefile data
It seems increasingly common these days that data providers are saving shapefile data as PolygonZ or PolyLineZ data, rather than...

3 meses hace | 2 respuestas | 1

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Pregunta


Glitchy Command Window behavior in R2022a and R2022b
I've got a MacOS 12.6.1, and I've noticed since I upgraded to R2022a that the cursor in the Command Window no longer behaves pre...

3 meses hace | 0 respuestas | 2

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respuestas

Pregunta


parpool failed to start
I'm trying to start a parallel pool in Matlab 2020b, but the pool repeatedly fails to start. Can anyone offer any guidance? Here...

5 meses hace | 0 respuestas | 0

0

respuestas

Pregunta


calling a built-in private function
I'm using stream2 for a big problem that takes about a week to run on a high-performance computer. The profiler tells me that mo...

5 meses hace | 1 respuesta | 0

1

respuesta

Respondida
Mapshow : attribute colors to polygons according to ID
Try this. Define a list of colors, and plot each gridcode region seperately. climate = shaperead('c1976_2000.shp'); % List...

6 meses hace | 0

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Respondida
Is it possible to define colormap ranges or merge colormaps?
Try concatenating colormaps, like this. Below I'm using my cmocean colormaps, which are available on File Exchange, but you can ...

6 meses hace | 1

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Pregunta


stream2 fails if coordinates are single precision?
I've encountered a strange behavior with stream2 which fails silently if any input coordinates are single precision. It looks li...

6 meses hace | 1 respuesta | 0

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respuesta

Respondida
Boundary/polygon around coastline of Greenland
I've just added a 'gl' option to plot Greenland's grounding line using BedMachine's mask. https://github.com/chadagreene/BedMach...

10 meses hace | 1

Pregunta


Unfamiliar .D0 number syntax
I've inherited some Matlab code that was previously adapted from Fortran, and the Matlab code has a syntax I'm not familiar with...

11 meses hace | 1 respuesta | 0

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Enviada


Arctic Mapping Tools
Or: Antarctic Mapping Tools for Matlab, Greenland Edition

alrededor de 1 año hace | 18 descargas |

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Pregunta


XData and YData from area chart
I'm using the area function to create a stacked area chart of hundreds of time series. After plotting my data via h = area(t,Y...

más de 1 año hace | 1 respuesta | 0

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respuesta

Respondida
Can anyone help me with the a tentative guide on how to average across the two dimensions of a 3d array, and loop it across 86 timesteps?
If you have a temperature data cube T whose dimensions correspond to lat x lon x time, the simplest way to get an 86x1 array of ...

más de 1 año hace | 1

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Respondida
Better “centerpoint” than centroid of a concave polygon
I added a polycenter function to do exactly what you need in the Climate Data Toolbox for Matlab. If you have a shapefile, the...

más de 1 año hace | 0

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What should go in a next-generation MATLAB X?
If I could design Matlab from scratch I'd get rid of semicolons to suppress output, and make element-wise operations the def...

más de 1 año hace | 0

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What should go in a next-generation MATLAB X?
I'd like to define ranges using square brackets for inclusive and rounded brackets for exclusive. So insead of if x>=20 & x<30...

más de 1 año hace | 0

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How can I convert a shapefile boundaries to lat and lon?
If it's a standard map projection, use projinv.

más de 1 año hace | 0

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How to find a figure's centroid inside a polyshape?
Also answered here, but reposting my answer in case anyone stumbles upon this thread. I just ran into this problem when trying...

más de 1 año hace | 0

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Better “centerpoint” than centroid of a concave polygon
I just ran into this problem when trying to place a text label in the middle of a crescent-shaped ice shelf. The centroid or the...

más de 1 año hace | 1

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Stereographic plot of Sea Surface Temperature Data around Antarctica.
Hi Ravi, There are a couple of ways to do this. Here's one way: Turn your vectors of latitude,longitude coordinates into 2D ...

más de 1 año hace | 0

Enviada


gridbin
A MATLAB function for gridding large datasets of scattered data.

más de 1 año hace | 5 descargas |

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Enviada


maskoverlay
A MATLAB function to easily overlay a mask.

más de 1 año hace | 1 descarga |

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