{"id":421483,"date":"2026-01-15T16:38:52","date_gmt":"2026-01-15T15:38:52","guid":{"rendered":"https:\/\/climatescience.press\/?p=421483"},"modified":"2026-01-15T16:38:54","modified_gmt":"2026-01-15T15:38:54","slug":"measuring-and-analysing-sea-levels-using-satellites-during-2025","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=421483","title":{"rendered":"Measuring and Analysing Sea Levels using Satellites during 2025"},"content":{"rendered":"\n
\"Graph<\/figure>\n\n\n\n

<\/p>\n\n\n\n

From Watts Up With That?<\/a><\/p>\n\n\n\n

By Dr. Alan Welch FBIS FRAS<\/strong><\/p>\n\n\n\n

This report presents and analyses the sea level data for 2025.  It was a roller coaster year for sea level data that turned into a \u201cHunt the Data\u201d exercise.  As a consequence, the analyses main purpose is to link the new data to the old and produce a new methodology so that changes to sea levels in 2026 can be more easily judged.<\/p>\n\n\n\n

The NOAA site:    https:\/\/www.star.nesdis.noaa.gov\/socd\/lsa\/SeaLevelRise\/LSA_SLR_timeseries.php<\/a><\/p>\n\n\n\n

gave data for the end of January then no more for the rest of the year.  Does anyone know why and\/or if the data is available any other way?<\/p>\n\n\n\n

The NASA site: https:\/\/science.nasa.gov\/earth\/explore\/earth-indicators\/sea-level<\/a><\/p>\n\n\n\n

produced data for January, April<\/a>, July, August, September, November and December <\/a>but in July 2025 NASA changed dramatically the amount of data being provided.  Up to April 2025 the data consisted of 13 columns giving number of readings, standard deviations and results with and without a 60-day Gaussian type filter applied, with and without GIA not applied and with and without annual and semi-annual signal removed.  The data analysed was from COLUMN 12 which was for smoothed (60-day Gaussian type filter) GMSL (GIA not applied) variation (mm); annual and semi-annual signal <\/a>removed.<\/p>\n\n\n\n

Whereas in July only 3 columns of data appear:-<\/p>\n\n\n\n

HDR 1 year+fraction of year<\/p>\n\n\n\n

HDR 2 GMSL (cm)<\/p>\n\n\n\n

HDR 3 GMSL with 60-day smoothing applied (cm)<\/p>\n\n\n\n

with the 3rd<\/sup> column being used in the analysis.<\/p>\n\n\n\n

Also, up to April 2025 data appeared on a roughly 10-day cycle but in July this changed to a 7- day cycle.  To add more misery the U.S. Government shut down stopped any data at all being provided for a couple of months.<\/p>\n\n\n\n

To show he differences in the data used for the analyses Figures 1 and 2 give the diagrams provided by NASA for April and July 2025.<\/p>\n\n\n

\n
\"Line<\/figure>\n<\/div>\n\n\n

How to proceed?<\/p>\n\n\n\n

Up to April 2025, after 7 years of studying the NASA data, several standard Excel spreadsheets had been created producing plots of the Full Data with best fit Linear, Quadratic and Sinusoidal curves with the associated equations and plots of residuals, measured from the linear line, with best fit Quadratic and Sinusoidal curves.  Also, statistical results have been produced and historical plots of how the so called \u201caccelerations\u201d had changed with time.<\/p>\n\n\n\n

One approach would be to use the data as it is with the old spreadsheets, but this would lead to very \u201cbumpy\u201d plots.  The annual and semi-annual signal vary from -4.33 to 5.46mm which is quite large when compared with an annual average increase of about 3.3mm.<\/p>\n\n\n\n

A second method would be to do a moving annual average which would eliminate the bumps but would also lose a lot of the El Ni\u00f1o\/La Ni\u00f1a effects which are useful to show.<\/p>\n\n\n\n

The annual and semi-annual signal <\/a>is a regular variation that repeats year in year out with the same shape, so the amount involved only depends on the date in the year.  Using this fact the signal\u2019s value at any time in the year can be ascertained from the readings with and without it included.  This was done using the difference between columns 11 and 12 of the April 2025 data, creating a list of dates and differences then subtracting the year value from the date.  This leaves 2 columns for the partial year date and the annual and semi-annual signal which is shown in figure 3.<\/p>\n\n\n

\n
\"Line<\/figure>\n<\/div>\n\n\n

An 8-order polynomial curve was fitted to the graph in figure 3 using the LINEST Function in Excel, resulting in<\/p>\n\n\n\n

y = -6643.928484 x8<\/sup> + 25497.575242 x7<\/sup> \u2013 37890.084128 x6<\/sup> + 27118.787657 x5<\/sup> \u2013 9446.372672 x4<\/sup> +<\/p>\n\n\n\n

1420.212996 x3<\/sup> \u2013 37.494970 x2<\/sup> \u2013 18.784928 x + 0.200699                                               Equation 1<\/p>\n\n\n\n

The order and accuracy may look excessive, but a 6-order was found to be too inaccurate at the extreme ends of the graph and although 2 less significant figures only changed the graph slightly it was decided to stay with this equation.  Figure 4 shows a plot of the actual and fitted curves indicating only a small inaccuracy at the extreme ends of about 0.1mm.<\/p>\n\n\n

\n
\"A<\/figure>\n<\/div>\n\n\n

The new data with annual and semi-annual signals can now be processed by taking the sea level and calculate the part year by using a calculation in Excel<\/p>\n\n\n\n

Part year = year \u2013 INT(year)<\/p>\n\n\n\n

and then calculating the annual and semi-annual signal using Equation 1.  This can then be taken off the listed sea level and the normal processing carried out.<\/p>\n\n\n\n

I wish life was that easy.<\/strong><\/p>\n\n\n\n

This process was applied to the NASA Aug 2025 data which only had data with the signal included.  The result was not satisfactory with the Aug data having a seemingly larger variation than what was shown in previous data releases.<\/p>\n\n\n\n

Another source of readings is from our friends at the University of Colardo. Their site https:\/\/sealevel.colorado.edu\/data<\/a> is a useful source of information even if you don\u2019t like the conclusions they reach like extrapolated sea levels in 2100.  The site has 2 sets of processed data shown in figures 5 and 6.  The \u201cacceleration\u201d indicated is 0.071mm\/year2<\/sup> which is line with other estimations.  Strangely this site has removed several figures for analyses carried out between 2020 and 2025.<\/p>\n\n\n

\n
\"Figure<\/figure>\n<\/div>\n\n\n

Repeating the process shown in Figure 3 resulted in<\/p>\n\n\n

\n
\"Line<\/figure>\n<\/div>\n\n\n

The equation for an eight-order polynomial is given by Equation 2.<\/p>\n\n\n\n

y = -7765.207058 x8<\/sup> + 32631.342618 x7<\/sup> \u2013 54125.59435 x6<\/sup> + 44768.098468 x5<\/sup> \u2013 19273.077711 x4<\/sup> +<\/p>\n\n\n\n

4111.056244 x3<\/sup> \u2013 321.22496 x2<\/sup> \u2013 25.210076 x + 1.282815                                               Equation 2<\/p>\n\n\n\n

The comparison of this eight-order polynomial with the actual values is shown in Figure 8.<\/p>\n\n\n

\n
\"Graph<\/figure>\n<\/div>\n\n\n

This shows a similar form with some small differences in shape and is generally about 30% more than in Figure 3.  The best option therefore is to use the data as supplied by NASA and accept that any graphs will be affected by the annual signals.<\/p>\n\n\n\n

The sets of data analysed are therefore January and April 2025 with the full data and July, August, September , November,  and December 2025 with the reduced data.  The data for April 2025 and December 2025 will both be processed for comparison. <\/p>\n\n\n\n

Figures 9 and 10 show the linear and quadratic best fits of the full data.<\/p>\n\n\n

\n
\"Graph<\/figure>\n<\/div>\n\n\n

The differences in the equation\u2019s coefficients seem larger than would be expected but it is more revealing the change year on year with consistent sets of data so 2026 data will be more revealing.<\/p>\n\n\n\n

The residuals are plotted in Figures 11 and 12 together with the quadratic best fit curves and the standard deviations of the errors added.  To check this process is carried out correctly the quadratic terms are compared with that for the full data and the linear fits checked as being given by y = 0 x + 0.<\/p>\n\n\n

\n
\"Figure<\/figure>\n<\/div>\n\n\n

Next in Figures 13 and 14, the residuals are plotted together with a sinusoidal curve having an amplitude of 4.2 mm and a period of 29 years.\u00a0 The value of 29 years has been used for a couple of years having been originally eyed in and is probably not quite the best fit curve but not far off.<\/p>\n\n\n

\n
\"Figure<\/figure>\n<\/div>\n\n\n

The standard deviations of errors with the sinusoidal curve are lower than the quadratic for both the April and December analyses.  The inclusion of the annual and semi-annual signal greatly increases the standard deviation for both curves.<\/p>\n\n\n\n

Figures 15 to 18 show histogram plots of errors for the two analyses.<\/p>\n\n\n

\n
\"Figure<\/figure>\n<\/div>\n\n
\n
\"Figure<\/figure>\n<\/div>\n\n\n

Figures 15 and 17 show more normal distributions whereas in Figures 16 and 18 the shape of the annual and semi-annual signal <\/a>makes them slightly skew.<\/p>\n\n\n\n

Figures 19 and 20 shows the result of the spectral analysis for the full data. <\/p>\n\n\n

\n
\"Figure<\/figure>\n<\/div>\n\n\n

Both show that there is a very long-term variation and in figure 20 the annual and semi-annual signal appears as a spike at a period of 1 year.  On this plot it appears very small  compared with other peaks due to Solar and Lunar cycles but is better judged on the residual spectral analysis shown in figure 22 below.<\/p>\n\n\n\n

Figures 21 and 22 shows the result of the spectral analysis for the residuals in the NASA analysis. <\/p>\n\n\n

\n
\"Line<\/figure>\n<\/div>\n\n\n

Figures 23 and 24 plot the \u201cacceleration\u201d values against the date they were determined based on the data from the start of 1993 up to that date.\u00a0 The effect of El Ni\u00f1os and the annual and semi-annual signal can be seen. If the residuals had followed a sinusoidal variation based on the 29-year sinusoidal curve an equivalent set of \u201caccelerations\u201d could have been determined.\u00a0 Remember the curve labelled \u201csinusoidal\u201d is\u00a0NOT<\/strong>\u00a0a sinusoidal curve but a curve of \u201caccelerations\u201d based on the residuals having a sinusoidal variation.<\/p>\n\n\n

\n
\"Graph<\/figure>\n<\/div>\n\n\n

Figures 25 and 26 show the \u00a0\u201caccelerations\u201d as at the end of Jan 2025 with the long term predicted \u00a0\u201caccelerations\u201d up to the 2060\u2019s calculated using quadratic curve fitting to a set of data obtained from a 29-year curve.\u00a0 The validity or not of the curve will be seen earlier by about 2034 when, if correct, \u201caccelerations\u201d will be approaching values seen in the long-term Tidal Gauges i.e. values of about 0.01 mm\/year2<\/sup>.<\/p>\n\n\n

\n
\"Figure<\/figure>\n<\/div>\n\n\n

No conclusions about sea levels during 2025 have been deduced.  The comparisons between April 2025 and December 2025 show no major differences and so the ongoing work must turn to the changes during 2026.  Figure 26 is considered the most revealing graph, now somewhat complicated by the annual and semi-annual signal, which masks the El Ni\u00f1o variations, but assuming no more complications with data presentation by NASA there should be a steady drop in \u201caccelerations\u201d throughout 2026.<\/p>\n\n\n\n

If any readers have stayed the course, I wish them all the best for 2026 and hopefully I\u2019ll be reporting on 2026 in twelve months\u2019 time .<\/p>\n\n\n\n

# # # # #<\/strong><\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

This report presents and analyses the sea level data for 2025.\u00a0 It was a roller coaster year for sea level data that turned into a \u201cHunt the Data\u201d exercise.\u00a0 As a consequence, the analyses main purpose is to link the new data to the old and produce a new methodology so that changes to sea levels in 2026 can be more easily judged.<\/p>\n","protected":false},"author":121246920,"featured_media":421508,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_seo_schema_type":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":true,"token":"eyJpbWciOiJodHRwczpcL1wvY2xpbWF0ZS1zY2llbmNlLnByZXNzXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI2XC8wMVwvMFNjcmVlbnNob3QtMjAyNi0wMS0xNS0xNjIzNDEtMTAyNHg1MDgucG5nIiwidHh0IjoiTWVhc3VyaW5nIGFuZCBBbmFseXNpbmcgU2VhIExldmVscyB1c2luZyBTYXRlbGxpdGVzIGR1cmluZyAyMDI1IiwidGVtcGxhdGUiOiJoaWdod2F5IiwiZm9udCI6IiIsImJsb2dfaWQiOjE1NTgxMjQ0OX0.S6p2b2TKGhi4S2Ok0OmBtmUHLQfK_LWKmG2-QRFr-yMMQ"},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[691840735,691820093,691840736],"class_list":["post-421483","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-nasa-data","tag-sea-level","tag-university-of-colardo","fallback-thumbnail"],"jetpack_publicize_connections":[],"jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-1LE7","jetpack-related-posts":[{"id":414935,"url":"https:\/\/climatescience.press\/?p=414935","url_meta":{"origin":421483,"position":0},"title":"NOAA Sea Levels","author":"uwe.roland.gross","date":"11\/27\/2025","format":false,"excerpt":"This study consists of two parts: - Part 1 \u2013 Variation of NOAA Sea Levels globally and for the 24 sub-areas. Part 2 \u2013 Variation of NOAA Sea Level data based on individual satellites. Most of the figures can be found in 2 Google Drive files details of which can\u2026","rel":"","context":"In \"NOAA (National Oceanic and Atmospheric Administration)\"","block_context":{"text":"NOAA (National Oceanic and Atmospheric Administration)","link":"https:\/\/climatescience.press\/?tag=noaa-national-oceanic-and-atmospheric-administration"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQPSLNvp4_kbB7uSwjaeL5Mp9ciqFK6L_mxJuoAmAj6mEIjBpkjfH99Oc60rtOvY5m4dk4hjrgPAa-mT5R7Ed90RnkHvcRkEa6R5iHsSqAnLw5OBVtSeoCktixviBqmc-1.jpeg?fit=1200%2C695&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQPSLNvp4_kbB7uSwjaeL5Mp9ciqFK6L_mxJuoAmAj6mEIjBpkjfH99Oc60rtOvY5m4dk4hjrgPAa-mT5R7Ed90RnkHvcRkEa6R5iHsSqAnLw5OBVtSeoCktixviBqmc-1.jpeg?fit=1200%2C695&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQPSLNvp4_kbB7uSwjaeL5Mp9ciqFK6L_mxJuoAmAj6mEIjBpkjfH99Oc60rtOvY5m4dk4hjrgPAa-mT5R7Ed90RnkHvcRkEa6R5iHsSqAnLw5OBVtSeoCktixviBqmc-1.jpeg?fit=1200%2C695&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQPSLNvp4_kbB7uSwjaeL5Mp9ciqFK6L_mxJuoAmAj6mEIjBpkjfH99Oc60rtOvY5m4dk4hjrgPAa-mT5R7Ed90RnkHvcRkEa6R5iHsSqAnLw5OBVtSeoCktixviBqmc-1.jpeg?fit=1200%2C695&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/11\/0AQPSLNvp4_kbB7uSwjaeL5Mp9ciqFK6L_mxJuoAmAj6mEIjBpkjfH99Oc60rtOvY5m4dk4hjrgPAa-mT5R7Ed90RnkHvcRkEa6R5iHsSqAnLw5OBVtSeoCktixviBqmc-1.jpeg?fit=1200%2C695&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":255812,"url":"https:\/\/climatescience.press\/?p=255812","url_meta":{"origin":421483,"position":1},"title":"30 Years of Measuring and Analysing Sea Levels using Satellites","author":"uwe.roland.gross","date":"05\/03\/2023","format":false,"excerpt":"I find Dr. Welch\u2019s analyses interesting and feel strongly that Dr. Welch\u2019s analyses deserve to be seen and discussed.","rel":"","context":"In \"NASA\"","block_context":{"text":"NASA","link":"https:\/\/climatescience.press\/?tag=nasa"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/05\/0359500989.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/05\/0359500989.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/05\/0359500989.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/05\/0359500989.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2023\/05\/0359500989.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":416071,"url":"https:\/\/climatescience.press\/?p=416071","url_meta":{"origin":421483,"position":2},"title":"Does the Global Sea-Level Rise Have a Sinusoidal Variation","author":"uwe.roland.gross","date":"12\/05\/2025","format":false,"excerpt":"The question \u201cWhy does the Global Sea Level Rise have a sinusoidal variation with a period of about 26 years?\u201d was asked in the comments to one of my papers in 2023. My reply pointed out that the satellite coverage was only 95% and so what was happening in the\u2026","rel":"","context":"In \"NOAA data\"","block_context":{"text":"NOAA data","link":"https:\/\/climatescience.press\/?tag=noaa-data"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/12\/AQN6N02xsfBE-OSOofSRtyamKpQY6hvhm2tBf5769db6-tFS1WwqPiIf2mKSgccE4G5Q7ovqTNj2ST06c21jdU0Weo3lL8fiadLtXGXxco_I6Pn1wJkWX_-6As1c24XRMP4eOI0ZOnVqzI6M8IiRWLl6RxeZ1w.jpeg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/12\/AQN6N02xsfBE-OSOofSRtyamKpQY6hvhm2tBf5769db6-tFS1WwqPiIf2mKSgccE4G5Q7ovqTNj2ST06c21jdU0Weo3lL8fiadLtXGXxco_I6Pn1wJkWX_-6As1c24XRMP4eOI0ZOnVqzI6M8IiRWLl6RxeZ1w.jpeg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/12\/AQN6N02xsfBE-OSOofSRtyamKpQY6hvhm2tBf5769db6-tFS1WwqPiIf2mKSgccE4G5Q7ovqTNj2ST06c21jdU0Weo3lL8fiadLtXGXxco_I6Pn1wJkWX_-6As1c24XRMP4eOI0ZOnVqzI6M8IiRWLl6RxeZ1w.jpeg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/12\/AQN6N02xsfBE-OSOofSRtyamKpQY6hvhm2tBf5769db6-tFS1WwqPiIf2mKSgccE4G5Q7ovqTNj2ST06c21jdU0Weo3lL8fiadLtXGXxco_I6Pn1wJkWX_-6As1c24XRMP4eOI0ZOnVqzI6M8IiRWLl6RxeZ1w.jpeg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/12\/AQN6N02xsfBE-OSOofSRtyamKpQY6hvhm2tBf5769db6-tFS1WwqPiIf2mKSgccE4G5Q7ovqTNj2ST06c21jdU0Weo3lL8fiadLtXGXxco_I6Pn1wJkWX_-6As1c24XRMP4eOI0ZOnVqzI6M8IiRWLl6RxeZ1w.jpeg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":426873,"url":"https:\/\/climatescience.press\/?p=426873","url_meta":{"origin":421483,"position":3},"title":"WUWT Leads The Way Again","author":"uwe.roland.gross","date":"02\/18\/2026","format":false,"excerpt":"So \u2026 can we put this question to bed?\u00a0 There is no evidence of acceleration in the actual tide gauge sea level data, and the apparent acceleration in the satellite data is merely an artifact of splicing disparate satellite records.","rel":"","context":"In \"Climate change\"","block_context":{"text":"Climate change","link":"https:\/\/climatescience.press\/?tag=climate-change"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/02\/0-Sea-levels-town.jpeg?fit=1200%2C900&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/02\/0-Sea-levels-town.jpeg?fit=1200%2C900&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/02\/0-Sea-levels-town.jpeg?fit=1200%2C900&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/02\/0-Sea-levels-town.jpeg?fit=1200%2C900&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/02\/0-Sea-levels-town.jpeg?fit=1200%2C900&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":298252,"url":"https:\/\/climatescience.press\/?p=298252","url_meta":{"origin":421483,"position":4},"title":"Maine Sea Level Panic","author":"uwe.roland.gross","date":"01\/23\/2024","format":false,"excerpt":"So I open my electronic window onto the world this morning, and I find lots of wailing and gnashing of teeth about a projected sea level rise in the US state of Maine.","rel":"","context":"In \"climate alarmism\"","block_context":{"text":"climate alarmism","link":"https:\/\/climatescience.press\/?tag=climate-alarmism"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0PortlandHeadLight.jpg?fit=1200%2C748&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0PortlandHeadLight.jpg?fit=1200%2C748&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0PortlandHeadLight.jpg?fit=1200%2C748&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0PortlandHeadLight.jpg?fit=1200%2C748&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2024\/01\/0PortlandHeadLight.jpg?fit=1200%2C748&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":453706,"url":"https:\/\/climatescience.press\/?p=453706","url_meta":{"origin":421483,"position":5},"title":"Technical Note on the Possible Variation in Sea Level Rise \u201cAccelerations\u201d over the Next 5 Years","author":"uwe.roland.gross","date":"07\/03\/2026","format":false,"excerpt":"(WARNING \u2013 this paper contains images of 5-year projections in sea levels that some readers may find disturbing.) The next 5 years may be a good opportunity to judge how the \u201cglobal\u201d sea level rises are changing, especially with respect to the perceived \u201caccelerations\u201d. The terms \u201cglobal\u201d and \u201caccelerations\u201d are\u2026","rel":"","context":"In \"el Ni\u00f1o\"","block_context":{"text":"el Ni\u00f1o","link":"https:\/\/climatescience.press\/?tag=el-nino-2"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/07\/0-Technical-Note-on-the-Possible-Variation-in-Sea-Level-Rise-Accelerations-over-the-Next-5-Years.jpg?fit=1168%2C784&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/07\/0-Technical-Note-on-the-Possible-Variation-in-Sea-Level-Rise-Accelerations-over-the-Next-5-Years.jpg?fit=1168%2C784&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/07\/0-Technical-Note-on-the-Possible-Variation-in-Sea-Level-Rise-Accelerations-over-the-Next-5-Years.jpg?fit=1168%2C784&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/07\/0-Technical-Note-on-the-Possible-Variation-in-Sea-Level-Rise-Accelerations-over-the-Next-5-Years.jpg?fit=1168%2C784&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/07\/0-Technical-Note-on-the-Possible-Variation-in-Sea-Level-Rise-Accelerations-over-the-Next-5-Years.jpg?fit=1168%2C784&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2026\/01\/0Screenshot-2026-01-15-162341.png?fit=1495%2C741&ssl=1","_links":{"self":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/421483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/users\/121246920"}],"replies":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=421483"}],"version-history":[{"count":11,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/421483\/revisions"}],"predecessor-version":[{"id":421510,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/posts\/421483\/revisions\/421510"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=\/wp\/v2\/media\/421508"}],"wp:attachment":[{"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=421483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=421483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/climatescience.press\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=421483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}