Spatiotemporal Variations of Drought and Their Teleconnections with Large-Scale Climate Indices over the Poyang Lake Basin, China
Round 1
Reviewer 1 Report
Generally a well organized and presented work. My comments are:
On content and structure:
Section 3.3, Links: Shortlived relationships between hydrological variables and climatological indices are usually indications on spurious covariations and do not deserve much attention nor discussion, even though they may be significant. Also in a random field there will always be some seemingly significant events.
4: Discussion
Much repetition of information given in the earlier parts of the paper reduces the readability of this fairly long discussion. Concentrate on the main findings.
On details:
Line 62: On introduction of SPEI it is better to refer to the original paper than on a later application. Use [36] here, not [20].
Line 85: The use of "sparse" in sparse observation stations indicates that there are few stations available. That does not seem to be the case.
Line 145 - 147: The definition of w is missing (w= sqrt(-2ln(P))), making the description of the methodology incomplete and not useful.
Line 224: "energy" as a term appears, it is only used here and in Figure 2 (Mean normalized energy) - without definition. To the reader which is not familiar with the EMD/EEMD approach this will not make sense.
Line 225: Variance contribution and correlation coefficient - guess that is with the original SPEI series? Please clarify. I guess it would be illustrative to present the original series, for instance in Figure 2.
Figure 2: To the extent that logaritmic scale is needed I would prefer to have the axis markings in the original variable, in particular the x-axis (mean period).
Line 247 - 253: This discussion of the trend in Res appears as contradictory. If there is a wetting trend over the whole period, a reduction in the trend after 1987 should not make it a drying trend. Please clarify.
Author Response
Please see the attachment
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Dear authors,
Just some small remarks:
Relation 2: To replace y by the origin parameter ϒ (gama)
Relation 3: To provide the relation used for the computation of Probability Weighted Moments (PWMs)
Page 14, row 397: "Arrows in the in the cross….." - To avoid repetition
Best regards,
Author Response
Please see the attachment
Author Response File: Author Response.pdf
Reviewer 3 Report
Line 140. It is advisable to explain the methodology of PET calculation.
Line 280. Should be “an increasing nonlinear trend”
Line 296 I suggest adding an explanatory word “probability levels”
Line 349 Maybe SPEI, not SPI?
Line 350 Should be “large-scale climate indices”
Line 397 Delete a repetitive “in the”
Author Response
Please see the attachment
Author Response File: Author Response.pdf
