A Fusion Method for Multisource Land Cover Products Based on Superpixels and Statistical Extraction for Enhancing Resolution and Improving Accuracy
Round 1
Reviewer 1 Report
By considering a new Superpixel algorithm, PCA, and statistical extraction techniques with the Google Earth Engine (GEE) platform, authors are proposing a multisource product fusion mapping method. I found this paper very interesting where Several technical aspects were nicely implemented and explained sufficiently. Undoubtedly, authors invested huge amount of time and have made a great effort to produce this high-quality of research which is clearly structured and the language used is largely appropriate. As final decision, I see that this manuscript in its form and level deserves to be accepted for publication in MDPI-RS.
Author Response
I am very honored to receive your recognition of this work，thank you very much for your comments on our manuscript.
Reviewer 2 Report
In this manuscript, the authors propose a multisource land cover products fusion method based on a segmentation algorithm and PCA technique.
The manuscript is well organized, the abstract is fine, all used data are described, and the results seems effective.
Some very short improvements, as given below, could clarify the obtained results.
- Please improve the introduction with a brief discussion on the different land cover classes in relationships with the resolution. Sometimes, the meaning of the legends is inconsistent and a hard work of re-classify deep changes have to be done to compare two or more maps.
- In figure 1, please explain the meaning oc grey scale colors in figure c, the explanation is in the text below, and this can be said in the caption.
- Row 327, please add a reference in this sentence.
As you declare in the discussion, this exercise has been done using data of 2015, and in the rows 520-533 you discuss this issue, can you explain better the proposed methods in this chapter?
Author Response
Thank you very much for your comments on our manuscript, please see the attachment.
Author Response File: 
Author Response.docx
Reviewer 3 Report
This article is a research that suggests a method to converge land cover information according to different spatial resolutions, and is expected to be helpful in preparing a land use change matrix for reporting NIR and in supporting a land management at the national and regional level.
However, it is necessary to present the definition of land use classification presented in <Table 3>. In particular, please explain the difference between "grassland and shrubland", and "water and wetland".
Author Response
Thank you very much for your comments on our manuscript, please see the attachment.
Author Response File: Author Response.docx
This manuscript is a resubmission of an earlier submission. The following is a list of the peer review reports and author responses from that submission.
