Talk:Atmospheric correction for interferometric synthetic aperture radar technique

Feedback for the page

 * 1) Can you add some linkage to different words like "troposphere", "ionosphere", "radiosonde"? It is much easier to understand the page if there is some linkage that point me to other Wikipedia page.
 * 2) Is it possible to add example to the calculation part?
 * 3) Can you add some text to explain the 'schematic resolution comparison InSAR and GPS for a large area'? For example, what is the red dots represent?

Hope me feedback is helpful Gabriel HY Lam (talk) 10:04, 17 October 2022 (UTC)

Comments from Victor
Hi! I am Victor. Here are some suggestions.

1. I think the conclusion part is not necessary. Instead, it can be replaced by a part called "comparison of technique".

2. More explanations for the illustrations will be better. E.g. "Schematic resolution comparison of InSAR and GPS for a large area", "Figure 5". Also, for the figures, I suggest that you can name them as figure 1, 2, 3, 4.....

3. For "Tropospheric correction methods", it includes a lot of equations and it is quite difficult to follow. Maybe you can focus only on 1-2 equations and give more detailed and simple explanations so that an audience with no science background can better understand.

Thank you VictorSo1031 (talk) 14:16, 17 October 2022 (UTC)

Comments
1. For equation 1, I suggest adding explanations on what other phi symbols refer to, like what you did for atmospheric artifacts φatm

2. I'd like see a table summarising the advantages and limitations of the correction methods.

3. It might be better to avoid using the pronoun 'we' in the ERA5 section. Matt.chw (talk) 07:30, 18 October 2022 (UTC)

Comments from Graeme
Graeme Bartlett (talk) 10:22, 18 October 2022 (UTC)
 * The above comments are good. Are you going to go into any more detail on ionospheric delays? Does clouds or rain affect the signal delay? (I know that it can scatter some signal).
 * The atmosphere puts a curve into the radio waves, not just adding a delay; How does that affect the results?
 * SAR can also be done from aeroplanes, but is that useful for InSAR?
 * It would be good to see the atmospheric effect on some differential images
 * SA Radar was used to map Venus and Titan. The atmospheres there are much thicker than on Earth. Was anything learnt about their atmospheres?
 * I will add that I would like to see what each symbol in your formulae represent. I can guess that z could be height, but is it distance along the beam line, or above terrain or above datum?
 * You mention PS and SBAS, but I cannot tell what you mean by those abbreviations.
 * Also there are ERA-I, ERA5, MERRA1, MERRA2 numerical weather models, but can you explain a little about those?
 * You mention "80–290 m for topography mapping " for 20% humidity change, this sounds amazing, but is it correct?
 * to get a superscript say 105 do it like this: 105 with the sup tag.
 * instead of using "/" as in "stacking/filtering" "time-correlated/time-independent", express what you mean in words as it is not clear what the meaning is. (see MOS:SLASH for the background on this).

Comments from Victor (14/11)
Hi! I am Victor. Here are some suggestions.

1. More bluelinks can be included in the last 2 parts.

2. Again, I do not think a summary part is necessary for a wikipedia page.

3. Some figures need to be bigger.

Thank you. VictorSo1031 (talk) 11:07, 14 November 2022 (UTC)

Comments from Miko (15 Nov)
Hello! This is Miko here! I would like to suggest some of the ideas for you to see if which can helps you getting your WIKI page better!

1. FIGURES: Please enlarge all the photos so that readers can see the little words in the photos clearly.

2. For PS and SBAS, I don’t quite understand what you mean by those abbreviations: (as shown below)

- In this section - Time series methods such as Persistent Scatter (PS) and Small Baseline Subset (SBAS). One of the approaches (what are the other approaches?) used to mitigate tropospheric effects on InSAR measurements has been stacking[17].

- The other advantage of this method is independent on external data and straightforward to implement. (Just these advantages?)

3. Limitation ( Do you mind changing this word into a larger title)

4. CITATION: Hu, ZhongBo (2019). Atmospheric artifacts correction for insar using empirical model and numerical weather prediction models (http://purl.org/dc/dcmitype/Text thesis) (in Spanish). Universitat Politècnica de Catalunya (UPC). Please double check on no.13 citation.

5. It would be great if you can make some tables e.g. the Advantage and Limitations of some correction methods.

6. Check the spellings i.e. MOSLTY

Hope these comments can help you! Mikocheung (talk) 06:55, 15 November 2022 (UTC)

Comments from Timothy

 * 1) Overall a very in-depth analysis of atmospheric correction. However as a non-meteorologist, I find it hard to follow a lot of the technical terms and equations, maybe simplify some of the stuff?
 * 2) A lot of technical terms can be hyperlinked eg. artifact displacement, Interferogram, phase decorrelation, orbital errors, phase-unwrapping errors etc.
 * 3) Equations and the variables under the Tropospheric correction methods are very difficult to follow, for example, 'local incidence angle' has never been mentioned or expounded upon before, but is defined as θ in the equation.
 * 4) Overall a great, detailed and technical page (just a bit difficult to understand)

Timothy D. Chow (talk) 12:33, 15 November 2022 (UTC)

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